hybridfree/eevblog-posts huggingface dataset:
DrDAQ anyone using/testing - Page 1
Forum section: electronics / testgear

author: bobi_dunkel
author_rank: Newbie
timestamp: March 11, 2015, 08:56:29 am
content: Hi,Does anyone has this data logger / scope ?http://www.drdaq.com/datalogger.htmlI have couple of questions...And if one is willing to do one 1 min test with it...Thank you in advance.Best regards,bobi
DC power supply with programmable ramp up/down behavior? - Page 1
Forum section: electronics / testgear

author: simmconn
author_rank: Regular Contributor
timestamp: March 08, 2015, 09:09:49 am
content: Short of buying a new bench power supply with built-in AWG, is there a way to put together a setup with regular lab test equipment to control the ramp up/down behavior of a bench power supply?
ICT " In Circuit Test " - Page 1
Forum section: electronics / testgear

author: spectro65
author_rank: Newbie
timestamp: March 08, 2015, 01:53:57 am
content: I am planning to purchase an " In Circuit Test" Equipment like the FADOS F91 or QMAX or Huntron. to be used to repair medical equipment circuit boards by a service engineer. Please let me know what are the most used models, are there any used equipment dealers.Budget is under $3000/
ratio measurement with a Datron 1061 Datron 1071 without the ratio module - Page 1
Forum section: electronics / testgear

author: e61_phil
author_rank: Frequent Contributor
timestamp: March 04, 2015, 08:11:24 pm
content: Hello,I have a Datron 1071 (I think a 1061 is nearly complete the same meter) without any Options. I would like to use this meter to do accurate ratio measurements. Has anybody tried to build the ratio board by it's own? I think it shouldn't be very difficult?thx Philipp

author: Vgkid
author_rank: Super Contributor
timestamp: March 04, 2015, 08:32:39 pm
content: Does the meter have any sort of math functions that are accessible?

author: e61_phil
author_rank: Frequent Contributor
timestamp: March 07, 2015, 01:08:51 pm
content: Sorry, I've missed your post.Yes the meter has math functions. But I would like to connect both sources at the same time. To measure the linearity of my Kelvin-varley-divider for example.
MSO1104Z and UltraScope - no Logic Analyzer? - Page 1
Forum section: electronics / testgear

author: Rick101
author_rank: Newbie
timestamp: March 05, 2015, 01:26:22 pm
content: I've just installed UltraScope and connected my MSO1104Z-S. Everything's working fine, except there seems to be no support for the logic analyzer.From what I've read, the LA support is poor on UltraScope (at least for other 'scopes with an LA), but it is non-existent on my setup.Ultra Sigma recognizes the 'scope as an MSO1104Z.Does anyone know whether the LA function is supported? Thanks.

author: Rick101
author_rank: Newbie
timestamp: March 06, 2015, 08:44:24 am
content: I've spoken to Rigol and they told me that this function is not there and it's unlikely to appear in the short-term.
Fluke 8050A defective power supply transformer - Page 1
Forum section: electronics / testgear

author: Electrocarduelis
author_rank: Newbie
timestamp: May 31, 2014, 01:44:46 pm
content: Hi, I wonder if you can help me to fix this issue: I own a Fluke 8050A (without battery option), and it doesn't switch on. I've found the failure, the power supply transformer doesn't have any output voltage (referenced T1 in schematic). I have tested it out of the board. I have no idea of its values, and consequently I can't find a replacement of it because the original is at least impossible to find. I've looked at the schematic but there isn't any information about the output voltage of the transformer. Do you know the output voltages? Pin 10 is the common and pins 8 and 12 are the two secondaries.There is a testing point (TP2) in the power supply circuit that should give a measure of +13V DC. Considering that this is after the bridge rectifier output (U29), in parallel with the 220uF capacitor C16 and in series with the 100 ohm resistor R22, if we apply the conversion factor of 1.4142 to 13V DC Test Point, transformer should provide 9.19 V AC so I suppose that it should be 2 x 5V maximum AC from each of its two secondary windings, but I wonder if anyone is aware of the exact value or would be so kind as to make a measurement on his 8050A own DMM if you have one.Thank you in advance and sorry for any inconvenience caused, this is my first post.

author: KJDS
author_rank: Super Contributor
timestamp: May 31, 2014, 01:51:38 pm
content: I'm sure I've got a couple of these meters about with poorly displays. I'm happy to send one to you for £10 plus postage costs, which is fine if you're in the UK, but won't be if you're in Bogota.If you tweak your profile we will be able to see which country you're in.

author: Electrocarduelis
author_rank: Newbie
timestamp: June 01, 2014, 07:42:07 am
content: Thank you for the offer, I live in Spain and I prefer to obtain a compatible transformer from a local provider, saving shipping costs.I will have this in mind if I can't obtain more info.I've modified my profile with my country info. Thanks for reporting.Regerds,Alejandro.

author: IconicPCB
author_rank: Super Contributor
timestamp: March 07, 2015, 12:32:39 am
content: Alejandro,Any Joy?
Flir e4 hack - Page 1
Forum section: electronics / testgear

author: sinbad
author_rank: Newbie
timestamp: March 05, 2015, 10:45:22 am
content: Hi, I am about to buy a flir thermal image camera and despite reading many of the posts, I am not sure if it is possible to carry out the upgrade to the software to the latest software versions that are being shipped. is there a definitive answer?many thanks in anticipation.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: March 05, 2015, 10:55:48 am
content: All currently known versions are hackable

author: sinbad
author_rank: Newbie
timestamp: March 05, 2015, 11:10:37 am
content: Thank you Mike, I appreciate your response. I'll try to read a little more, my skill set is more mechanically biased so all this software stuff is a little challanging

author: sinbad
author_rank: Newbie
timestamp: March 05, 2015, 11:13:43 am
content: Mike, have just realised who you are, have watched quite a few of your Youtube video's this morning, you are an intelligent guy and entertaing

author: gmit77
author_rank: Regular Contributor
timestamp: March 06, 2015, 05:10:34 pm
content: hello there we build a discount code on FLIR E4 for purchasing during this week end it is 10% OFF and free shipping over Europe.discount code sent via PM
Tek 2901 bulb? - Page 1
Forum section: electronics / testgear

author: Docholiday
author_rank: Regular Contributor
timestamp: March 06, 2015, 04:17:56 pm
content: I have a Tektronix 2901 which Inhave almost finished restoring except for repaint and one bad bulb next to the power switch.I do not have a clean copy of the manual but was able to determine the blub(s) info.Circuit: DS405 Part# 150-0035-00 Neon AID T2Circuit: DS424 Part # 150-0045-00 Incandescent #685Hopefully someone can help me out and tell me which one I need.Thank You,Nicholas

author: BravoV
author_rank: Super Contributor
timestamp: March 06, 2015, 04:23:18 pm
content: I have the original printed manual, will check it out and get back to you later, as I am travelling now.

author: Docholiday
author_rank: Regular Contributor
timestamp: March 06, 2015, 04:34:39 pm
content: Great, Thank you...
Fake BT138X-600D  or NOT ? That is the question. - Page 1
Forum section: electronics / testgear

author: JacquesBBB
author_rank: Frequent Contributor
timestamp: February 25, 2015, 09:56:39 am
content: Dear All,As the BT138X-600D triacs from NXP were only available at Mouser by thousands, I ordered some on aliexpress.I received them, but their package seems to be of very low quality compared to the other triacs I haveof similar values from NXP (see the attached pictures).I highly suspect that they are fake. What do you think ?If some one has an thrustful BT138X-600D, can he post a picture of it for comparison.Thanks

author: Zucca
author_rank: Unknown
timestamp: February 25, 2015, 10:19:03 am
content: Don´t know... but.. Did you compare them just with your eyes? May be a test circuit could help you to understand if you can use them as replacement or not.

author: Guni
author_rank: Regular Contributor
timestamp: February 25, 2015, 11:35:44 am
content: https://octopart.com/bt138x-600f-nxp+semiconductors-360503

author: JacquesBBB
author_rank: Frequent Contributor
timestamp: February 25, 2015, 01:18:15 pm
content: Quote from: Guni on February 25, 2015, 11:35:44 amIn fact this is morehttps://octopart.com/search?q=BT138X-600DQuote from: zucca on February 25, 2015, 10:19:03 amYes, up to now, I just compared with the eyes. The difference with the other NXP triacs was so flagrant that I did not even made an experiment, which I may do later on if this is the only way, but this needs some time and a proper setting to testthe component at full load.I have send a message to the supplier who says that the parts are genuine.I send also a message to NXP with no answer up to now.The pins of the triac are of glossy metal that looks very flimsy for a 12A triac.The overall quality of fabrication is very poor : printing is not even; plastic is not well pressed.This is why I ask on the forum, hoping that someone will have a genuine part to compare.

author: JacquesBBB
author_rank: Frequent Contributor
timestamp: March 06, 2015, 10:22:40 am
content: For information, this is the message I received from NXPFrom the picture, it is high possibility counterfeit part. While I would suggest you to purchase from authorized channel.

author: McBryce
author_rank: Super Contributor
timestamp: March 06, 2015, 12:03:47 pm
content: Compare the package and pin dimensions with the dimensions in the NXP Datasheet. Even looking at the picture, I'd say they don't match.http://www.nxp.com/documents/data_sheet/BT138X-600.pdfMcBryce.
P6016 current probe and 131/134 preamps - Page 1
Forum section: electronics / testgear

author: SArepairman
author_rank: Frequent Contributor
timestamp: March 06, 2015, 06:57:43 am
content: Additionally, it shows PA4TIM using the type 134 Amplifier (meant for 019 and 020) probes to use with a 016 probe.http://www.pa4tim.nl/wp-content/uploads/2013/02/P6016_134.jpgSo, what in the hell does the bandwidth of the P6016 actually look like, and I am guessing the 131 and 134 amplifiers are compatible?I also did note that they used a 545A oscilloscope for testing in the P6016 manual, which has a 3dB point of 30MHz, but, the bode plot suggests that this is irrelevant as the drop of signal level due to oscope bandwidth, so with a faster scope it should extend a bit beyond 20Mhz.

author: SArepairman
author_rank: Frequent Contributor
timestamp: March 06, 2015, 07:12:37 am
content: god damnit I got foiled by logarithmic scales. everything checks out.I was seeing 2.5 where it should have read 25.

author: PA4TIM
author_rank: Super Contributor
timestamp: March 06, 2015, 08:10:50 am
content: The 134 has a 35MHz bandwith, the probe is stated 20MHz, You can use them without an amplifier. The amps make it more comfortable to use. Most times I use my P6042, as far as I know one of the best current probes ever made
Differential Probe x10/x100 (700v) or x20/x200 (1400v) - Page 1
Forum section: electronics / testgear

author: inline
author_rank: Contributor
timestamp: March 04, 2015, 07:47:42 pm
content: I've decided to bite the bullet and purchase a differential probe. I'm looking at the Cal Test CT2593-1 and CT2593-2.The CT2593-1 is a x20/x200 probe with a 1400v capability and the CT2593-2 is a x10/x100 probe with a 700v capability.As I live in the U.S. and I'm interested in troubleshooting SMPS safely, I would think the CT2593-1 is the best pick for me.My understanding is that both have a switch, so for the CT2593-2 it's 70v/700v and for the CT2593-1 it's 140v/1400v.If I'm going to be probing 120vAC, I would think by using the low range on the CT2593-1 which is good upto 140v I'd have better resolution/less noise/better result vs the CT2593-2 where I'd exceed the 70v in the first range and have to use the 700V range by default.Am I correct in my understanding?Thanks!

author: inline
author_rank: Contributor
timestamp: March 05, 2015, 10:07:09 pm
content: Any advice?

author: Paul Moir
author_rank: Frequent Contributor
timestamp: March 05, 2015, 10:34:46 pm
content: Quote from: inline on March 05, 2015, 10:07:09 pmNo great advice, but the second set of eyes can be worthwhile: the 140v range is peak-to-peak while 120v RMS is 170 peak to peak. So for anything where you expect to see line voltage you're going to be on the high range. Besides, 120VAC ends in a SMPS the moment it goes through the bridge rectifier. It's not a particularly relevant number.Personally if I couldn't see myself ever wanting to probe over 700v, I would get the 700v/70v version. Otherwise the 1400v. Another way of looking at it is you're only doubling your resolution with the 700v/70v. A third way of looking at it is you could setup a resistor divider if you really wanted to look at 1400v.

author: inline
author_rank: Contributor
timestamp: March 06, 2015, 12:56:35 am
content: Thanks Paul. I wasn't thinking about this, you are right, but just one clarification actually. 120vAC is the rms voltage, so 170v is the peak, but the peak to peak would be 340v. So I guess I'll get the 70/700v version.

author: inline
author_rank: Contributor
timestamp: March 06, 2015, 01:03:18 am
content: But maybe not...I think I was correct at first. The specs of the probe are rated in RMS. -Differential Range +/-140V(DC+ AC Peak) and 140Vrms@1/20+/-1400V(DC+ AC Peak) and 1000Vrms @1/200

author: Paul Moir
author_rank: Frequent Contributor
timestamp: March 06, 2015, 04:10:41 am
content: Ah yes you're right. +- 140V is 280V peak to peak, so you could measure 120V RMS no problem. Sorry about that!
Mastech MS8268. How are the switch connectors? - Page 1
Forum section: electronics / testgear

author: ageres
author_rank: Newbie
timestamp: March 07, 2015, 05:51:04 pm
content: Hello.I beg you to look at your Mastech how located Connectors.Switch Began work badly and I decided to fix it. Took out connectors and did not remember the places where they stood.I will be very grateful if you take a look and take a photo the location of the connectors. I think that this is help not only me.Thank U.

author: radhaz
author_rank: Regular Contributor
timestamp: March 08, 2015, 05:51:14 am
content: Carefully examine the trace layout of the switch, you should establish the outer ring first, than put the contacts in based on the spacing of the contacts. That is how I would start out.

author: JSnyder
author_rank: Contributor
timestamp: March 08, 2015, 06:23:15 am
content: Here you go. edit- it looks like you have 7 spring contacts, mine only has 6. Maybe mine is missing one? I don't use this meter anymore so I don't know.

author: ageres
author_rank: Newbie
timestamp: March 08, 2015, 08:40:07 am
content: Thank JSnyder. Your photos helped me a lot.Here is correct positioning of switch connectors in Mastech MS8268
Tektronix 577 Curve Tracer: Teardown & Repair - Page 1
Forum section: electronics / testgear

author: dave_k
author_rank: Frequent Contributor
timestamp: February 28, 2015, 10:01:55 am
content: I have been cleaning out the back shed at work, and came across this (no idea how long it was sitting there but doesn't appear to be in terrible condition):Inside there are 2 main PCBs (there are 2 other PCBs for the power supply and CRT drive). This is the Main PCB containing the horizontal amplifier and step generator.This PCB contains the collector supply and vertical amplifier.Date code porn!Like most Tek gear of this vintage, transistors and IC's are socketed (sockets are soldered right into the board).I cleaned up the unit and started going through the calibration routine, after thoroughly cleaning and lubricating all switches and panel controls. Calibration is split into 2 sections - the main unit (577) and the standard test fixture (177).The main unit was mostly in spec, but the standard test fixture was not producing any vertical drive. First step was to check the supply rails to the vertical pre-amplifier section of the 177. This vertical pre-amplifier is supplied by a floating +/-15 volt supply. The positive rail was spot on, but the negative rail was down around -27 volts. A faulty zener diode (gold plated no less!) was the culprit along with a sad electro - which was duly replaced.Calibration of the 177 was completed without any further fuss, and here it is measuring a good old BC547.Next step is to replace some burned out panel lights with LED's and give the outer case a good scrubbing. Also would like to find a way to restore the colour of the test fixture socket panel (where the plastic is all yellowed).

author: PA0PBZ
author_rank: Super Contributor
timestamp: February 28, 2015, 10:15:14 am
content: Is that 2 DIP8's in a DIP16 socket on the main board?

author: dom0
author_rank: Super Contributor
timestamp: February 28, 2015, 10:22:54 am
content: Yes :-)

author: Vgkid
author_rank: Super Contributor
timestamp: February 28, 2015, 04:33:56 pm
content: I thought those 2 dual dip's were funny looking, good job on the fix.

author: teddy529
author_rank: Contributor
timestamp: March 04, 2015, 08:54:45 pm
content: Curve Tracer! I was looking for something like this for years!

author: Excavatoree
author_rank: Frequent Contributor
timestamp: March 04, 2015, 09:09:15 pm
content: Thanks for the documentation and the pictures. I've got one of these I managed to buy at a good price. (Not a "Dave good" price, or a "score" good price) I need to get the adaptors for it.

author: dave_k
author_rank: Frequent Contributor
timestamp: March 05, 2015, 09:19:14 pm
content: One of the manuals gives the dimensions of the terminal spacing to allow you to make your own adapters. Genuine ones still seem to attract a hefty price on eBay ..
How much are you willing to pay for an used Tektronix PS2520G ? - Page 1
Forum section: electronics / testgear

author: BravoV
author_rank: Super Contributor
timestamp: February 26, 2015, 01:46:04 am
content: Of course its working, and say if the price is right, are there any other considerations ?Brief spec :Programmable DC power supply, 3 channels :- Channel 1 & 2 : 0-36 V 1.5 Amp- Channel 3 : 0-6V 3 AmpRipple and Noise 20 Hz to 20 MHz:- Voltage Ripple: 1 mVRMS/3 mVp-p- Voltage Noise: 2 mVRMS/30 mVp-p- Current: <= 3 mARMS (<= 5 mARMS if rating current >3.5 A)Temp Coefficient (0 C to 40 C) :- Voltage: <= 100 ppm +/- 3 mV- Current: <= 150 ppm +/- 3 mADrift :- Voltage: <= 0.03% +/- 6 mV- Current: <= 0.1% +/- 6 mAFeature :GPIB supportSeries & parallel mode (Channel 1&2)Random image grabbed from google

author: Towger
author_rank: Super Contributor
timestamp: February 26, 2015, 09:23:55 am
content: Depends on what country your in, the shipping costs and how much you want/need it.Most sold on eBay are best offers, but the others are around 300~350 USD. The seller takes approx. 15% hit on fees.It is more than I would pay for a old programmable bench supply, that appears to only display one output at a time.Edit to add price: Assuming a private sale and you can pick up and test before hand. You would not go far wrong if you could get it for 100~150 USD/EUR/AUD.

author: EEVblog
author_rank: Unknown
timestamp: February 26, 2015, 10:17:22 am
content: Quote from: Towger on February 26, 2015, 09:23:55 amYeah, nice supply, but the one display would be annoying.

author: BravoV
author_rank: Super Contributor
timestamp: March 05, 2015, 04:38:18 pm
content: No luck, the seller won't let go for the price under $250, so be it.

author: dom0
author_rank: Super Contributor
timestamp: March 05, 2015, 06:35:31 pm
content: Those ripple/noise specs seem a little bit high for me. 30 mVpp? Or is this some older SMPS?
what is this adapter board with SOIC test clips for? - Page 1
Forum section: electronics / testgear

author: ralphd
author_rank: Frequent Contributor
timestamp: March 04, 2015, 12:11:37 am
content: I just ordered a cheap SOIC-8 test clip:http://www.aliexpress.com/item/Free-Shipping-New-1Pcs-SOIC8-SOP8-Flash-Chip-IC-Test-Clips-Socket-Adpter-BIOS-24-25/1844300545.htmlI don't know what the blue board is for. The green one seems to allow plugging into a breadboard or DIP-8 socket, but why the pads for different chips on the blue one?

author: McBryce
author_rank: Super Contributor
timestamp: March 04, 2015, 02:20:34 pm
content: It looks like an adapter for using SOIC parts on a breadboard.Bryce.

author: macboy
author_rank: Super Contributor
timestamp: March 04, 2015, 02:32:45 pm
content: The adapter board has dip-spaced pins (0.1" pin spacing and 0.3" width) to plug into a programmer device. The clip plugs into that and clips onto a SOIC EEPROM (etc.) on a PCB. In theory, this allows you to read and write the EEPROM without needing to remove it from the board... though it isn't always quite that easy.

author: ralphd
author_rank: Frequent Contributor
timestamp: March 05, 2015, 04:16:46 pm
content: Quote from: McBryce on March 04, 2015, 02:20:34 pmYes, but I can't figure out why you'd need it with a test clip. Maybe if there's no room for the clip and you have to de-solder the SOIC, then you can solder it to the adapter board?
Datron 1061 and the like:Rear connectors type info? - Page 1
Forum section: electronics / testgear

author: soldersplash
author_rank: Newbie
timestamp: March 05, 2015, 12:03:12 am
content: Hello all,I wonder if anyone out there knows the type of circular connectors which mate properly with the various rear panel input connectors on the Datron 1061/1071 etc.Any hint or pointers gratefully receivedKind regards,Soldersplash.

author: lowimpedance
author_rank: Super Contributor
timestamp: March 05, 2015, 12:20:10 am
content: If you are referring to the shrouded trig in ratio and rear input then as I pointed out in this thread (Post 26) your best bet would be Positronics GH series, while the shroud is likely a custom arrangment I suspect, the connectors themselves are very much like the circular HEX series GH from Positronics. Old avionics gear !!. Not sure if you can even get new ones anymore.https://www.eevblog.com/forum/testgear/datron-1062/
Siglent 1025 Easywave Software - Page 1
Forum section: electronics / testgear

author: Docholiday
author_rank: Regular Contributor
timestamp: March 03, 2015, 04:03:18 pm
content: I got my sdg 1025 yesterday loaded the Easywave software it says version 1.1.1.21 but on the Siglent America site it says version P27R2 before I install what is the latest version?Thanks....

author: ivan747
author_rank: Super Contributor
timestamp: March 03, 2015, 04:16:46 pm
content: Can you take a picture of what the screen says when you see the version number?

author: drakke
author_rank: Regular Contributor
timestamp: March 03, 2015, 04:31:49 pm
content: I have an SDG1025 also but have not tried Easywave yet.Is there a date on the software you downloaded because the website has 2014/9/30 for version P27R2?

author: Docholiday
author_rank: Regular Contributor
timestamp: March 03, 2015, 04:43:43 pm
content: The version that came on the CD is version 1.1.1.21 the version online is 1.1.1.27 a much newer version. I figured out by unpacking first and saw its version number. The reason I just did not just install it was because it was in rar format. Sometimes rar format will self install and just ruin your day!Thanks to everbody that replied....Nicholas

author: Docholiday
author_rank: Regular Contributor
timestamp: March 03, 2015, 04:58:25 pm
content: If you install easywave you will get an error that it cannot load because it cannot find visa32.dll You will need to go to the NI site join for free and download their software, during install only select the USB driver just X everthing else out or if you want the NI software install it all. Afterwards easywave will work just fine. By the way NI is free to join and download. Search here on eevblog for the Siglent easywave visa32 issue.

author: Siglent
author_rank: Regular Contributor
timestamp: March 04, 2015, 10:02:08 am
content: Quote from: Docholiday on March 03, 2015, 04:03:18 pmHi Docholiday,The latest Easywave versionhttp://siglentamerica.com/USA_website_2014/Firmware&Software/Software/EasyWave V100R001B01D01P29.rar

author: Docholiday
author_rank: Regular Contributor
timestamp: March 04, 2015, 12:28:58 pm
content: Awesome, Thank you so much for the update.Nicholas

author: Docholiday
author_rank: Regular Contributor
timestamp: March 04, 2015, 04:55:54 pm
content: Under Windows 7 I had to delete the previous version. Then install This new version since it would not load on top.Thank you...
Prema 6001 digital Multimeter - Page 1
Forum section: electronics / testgear

author: Cali-Sam
author_rank: Contributor
timestamp: March 04, 2015, 04:07:43 am
content: I scores a (Made in Germany) Prema 6001. From the very little info I found, it seems that it is a 6.5 digit (example 1.000000V). so is it a 6.5?it can measure down to 100 nV on the mV scale..there are absolutely no info about it in English.. All German! can anyone point to where I should look?Now here is the big question!!!Where does it sit in comparison to the hp3478a and the hp3457a?

author: Vgkid
author_rank: Super Contributor
timestamp: March 04, 2015, 04:34:05 am
content: It looks to be in the range of the 3457, sort of.

author: Wytnucls
author_rank: Super Contributor
timestamp: March 04, 2015, 05:11:59 am
content: 6 1/2 digits or 1,999,999 count.Similar to the 5017.http://www.manualslib.com/manual/713282/Prema-Dmm-5017.html?page=84#manual

author: dom0
author_rank: Super Contributor
timestamp: March 04, 2015, 11:14:51 am
content: You can contact Prema directly (per email), they have the manuals.

author: wiss
author_rank: Frequent Contributor
timestamp: March 04, 2015, 11:19:48 am
content: I have the english manual scanned (sent to me from PREMA support).A very useful instrument. Congratulations!

author: codeboy2k
author_rank: Super Contributor
timestamp: March 04, 2015, 11:30:30 am
content: Quote from: wiss on March 04, 2015, 11:19:48 amCan you post it, or post a link ? Thanks!

author: wiss
author_rank: Frequent Contributor
timestamp: March 04, 2015, 11:50:26 am
content: If you PM me your email I can email it to you!

author: codeboy2k
author_rank: Super Contributor
timestamp: March 04, 2015, 02:26:21 pm
content: Quote from: wiss on March 04, 2015, 11:50:26 amok done.
Loveland Controls Co Fast Test 430-B Electro Pneumatic Calibrator - Page 1
Forum section: electronics / testgear

author: orion242
author_rank: Unknown
timestamp: March 05, 2015, 03:53:52 pm
content: Anyone happen to have a manual for this guy in electronic form?

author: HiTech
author_rank: Regular Contributor
timestamp: March 05, 2015, 05:45:37 pm
content: Tough to come by - I have their 410A process calibrator [model without the pneumatic feature] and I have yet to locate a manual online.

author: orion242
author_rank: Unknown
timestamp: March 05, 2015, 06:40:53 pm
content: Kinda what I found. Looks like Honeywell bought them up and any info disappeared.I do a fair deal with their building automation group, so I'm trying to see if I can't probe someone within the industrial group. I somewhat doubt they will have something this old, especially since it was acquired into the borg.
USB Interference Analysation - Page 1
Forum section: electronics / testgear

author: SEKCobra
author_rank: Newbie
timestamp: March 03, 2015, 04:19:50 pm
content: Hey guys,So I've been having serious noise interference (on audio) problems with my current motherboard since the beginning, which I solved by switching over to 5.1 DDL via Optical, but on my headphones it is still not fixed, even though I went from Onboard > PCI > USB soundcard. So I figured its interference somewhere on the power rail (coming from the graphics cards, since the noise has always been corresponding to framerate/coil whine) and I wanna go ahead and try to filter it out on the USB connection.Long story short, is there a tool I can insert into a USB connection to analyze the specific lines and maybe even disconnect specific ones? Or should I just buy a small box and put some switches and pins on there?
Fluke 101 - kinda fun - Page 1
Forum section: electronics / testgear

author: jwm_
author_rank: Frequent Contributor
timestamp: March 02, 2015, 02:25:37 am
content: So I went ahead and ordered one of the inexpensive fluke 101 basic multimeters, and I gotta say, I kinda like it. It fills a very specific niche, namely, I want all of my money going towards fluke level of safety and features are secondary (tertiary, even). The thing is built as solid as any fluke and is perfect for my camping go-bag next to my butane soldering iron, it is just about right for what may come up unexpectedly on the road, generally always power circuit voltage testing or continuity testing are what is needed and safety is vital when possibly out of range of any help. It does have the unusual omission of a DC mV range.I tested it up to 600V (it's cat III rating) and it had no issues, nor did it have any problems with all ranges plugged into a wall socket. No doubt it could survive a lot more.I also kind of like the placement of the leads, it lets me directly connect it to things temporarily and see the screen. A handy robust temporary panel meter.

author: alank2
author_rank: Super Contributor
timestamp: March 02, 2015, 02:46:12 am
content: I too ordered a 101 a couple months ago. It is a cute little meter and quite handy. Makes me want to order the 107 too.I wish it had come with 'mini' leads though, that would have been even cooler.

author: Pasky
author_rank: Regular Contributor
timestamp: March 02, 2015, 07:14:28 pm
content: How fast is the continuity test on these? I'd love to have something reliable like a Fluke that's small and lightweight for my vehicles rather than lugging around my big 87-V.

author: retiredcaps
author_rank: Super Contributor
timestamp: March 02, 2015, 08:13:07 pm
content: Quote from: Pasky on March 02, 2015, 07:14:28 pmSee for yourself (about 22 minutes in).

author: Pasky
author_rank: Regular Contributor
timestamp: March 02, 2015, 10:46:13 pm
content: Awesome, thanks for the link. Noticed that was a Fluke 107 he used though, are they basically the same as a 101? Right away I noticed the jacks are in a different position.

author: Wytnucls
author_rank: Super Contributor
timestamp: March 02, 2015, 10:57:52 pm
content: Tested with Fluke TL175. The continuity on the Fluke 101 is latched. It is not lightning fast, but acceptable.
TSG4100A RF Vector Signal Generator - Page 1
Forum section: electronics / testgear

author: BalticLab
author_rank: Regular Contributor
timestamp: March 03, 2015, 08:34:41 pm
content: Tektronix announced their new vector signal generator for up to 6 GHZ and various standards, including DECT, APCO25 and TETRA, today. It appears that they suggest this product being used as companion together with the RSA306 or an MDO3K / MDO4K.From their site:When I first held Tektronix’s revolutionary RSA306 USB spectrum analyzer in the palm of my hand (yes, palm), I was excited about the impact it was going to have in the RF test market. Given our RF product team’s disruptive product innovation, I was eager to know what else was in the works. All I could get from our product managers was: “Wait, watch, and get excited!”It’s been a few months since the hugely successful release of the RSA306, and the team has kept its promise. Allow me to introduce the next great thing in RF test: the TSG4100A RF Vector Signal Generator. With frequency coverage up to 6 GHz, this is the industry’s first software upgradable vector signal generator in its class.The TSG4100A base model is equipped with standard analog modulation schemes, and upgrading to a basic digital modulation package (ASK, FSK, QPSK etc.) is as simple as requesting a software key. If you want to take it a step further with cellular modulation schemes (GSM, W-CDMA) or land mobile radio applications (APCO-25), those are easily upgradable too.The TSG4100A is suitable for education and research labs, general purpose R&D, and high volume production test applications. Its remarkable phase noise and amplitude accuracy make for an effective solution for basic spectral measurements such as linearity and ACPR and the more advanced receiver sensitivity and selectivity. Not to mention, it has a great starting price of $7,800, meaning it delivers mid-range performance at an affordable price point. Check out the TSG4100A product page for a datasheet and more details on the great value offered by this product.http://www.tek.com/blog/introducing-tsg4100a-rf-vector-signal-generator-%E2%80%93-disruption-rf-test-market-tektronix-continueshttp://www.tek.com/signal-generator/tsg4100aI think this is a very interesting piece of equipment. When I receive my TSG4106A with option E1 and fully loaded software package (all VMxx options & EIQ) this month, I'll make it a priority to review it ASAP. Please let me know if there's something in particular that you'd like for me to review or demonstrate on this instrument.
New video: In-depth testing of the cheapo $5 multimeter - Page 1
Forum section: electronics / testgear

author: Fungus
author_rank: Super Contributor
timestamp: February 27, 2015, 10:30:10 pm
content: I took one of the cheapo multimeters along to the City of Arts and Sciences for some really in-depth testing...pass or fail?Edit: Duh! I just spotted a big editing error - repeated scene in the middle!Fixed.

author: retiredcaps
author_rank: Super Contributor
timestamp: February 28, 2015, 04:21:42 am
content: After seeing this video, I decided to sell NYSE:DHR (Danaher Corp).https://finance.yahoo.com/q?s=DHRYou should have saved this video for April 1, 2015.

author: necessaryevil
author_rank: Regular Contributor
timestamp: February 28, 2015, 07:25:06 am
content: I have used those al cheapo's like forever and I am still using them, but I am going to buy a Brymen anytime soon. The video is very funny and the result is very suprising, I like it.I still think those meters are crap (but not useless). Try to remove the pcb and reinstall it. The lcd won't work again. Or try overvolting the inputs. Don't hold the meter!Also, these meters aren't all the same. Everyone is different, and I think the newer ones are worse The trick to the robustness is of course the low component count.Before I get a Brymen I am going to use the Victor/Sparkfun VC830L, another el cheapo, but recommended here on the forum:https://www.eevblog.com/forum/testgear/sparkfun-multimeter-teardown/

author: Shock
author_rank: Super Contributor
timestamp: February 28, 2015, 12:23:53 pm
content: Speechless...

author: Vgkid
author_rank: Super Contributor
timestamp: February 28, 2015, 04:30:59 pm
content: My Fluke doesn't even float.

author: Mr Simpleton
author_rank: Unknown
timestamp: February 28, 2015, 07:50:53 pm
content: But...Will it blend?

author: Lightages
author_rank: Unknown
timestamp: February 28, 2015, 07:56:52 pm
content: Thanks for putting a different bent on reviews. I am sure yours is more entertaining than mine!

author: Fungus
author_rank: Super Contributor
timestamp: February 28, 2015, 07:57:37 pm
content: Quote from: necessaryevil on February 28, 2015, 07:25:06 amYes, they take quite good measurements.Quote from: necessaryevil on February 28, 2015, 07:25:06 amI took the PCBs out in my original teardown video. That scene didn't make it into the final edit but they still worked afterwards.Quote from: necessaryevil on February 28, 2015, 07:25:06 amYep. There's not really much to break inside.

author: Fungus
author_rank: Super Contributor
timestamp: February 28, 2015, 07:58:52 pm
content: Quote from: Lightages on February 28, 2015, 07:56:52 pmThanks!I'm still learning to use the camera and video editing software ... this seemed like a fun thing to do.I can't really be a serious test gear reviewer because I only own enough equipment for about three videos (I assume nobody wants to see another video on the DS1050Z).If people want to start mailing me stuff though, I won't complain...

author: Fungus
author_rank: Super Contributor
timestamp: March 02, 2015, 07:08:09 am
content: Quote from: Lightages on February 28, 2015, 07:56:52 pmThanks!
Higher Bandwidth Scopes -- With Lasers - Page 1
Forum section: electronics / testgear

author: LightlyDoped
author_rank: Contributor
timestamp: March 05, 2015, 04:53:43 pm
content: Interesting article about the use of lasers in scopes. They can measure frequency components of 125 THz:http://arstechnica.com/science/2015/03/research-confirms-that-lasers-improve-everything-including-oscilloscopes/

author: Harrkev
author_rank: Contributor
timestamp: March 05, 2015, 07:55:42 pm
content: This is a sampling scope, not a real-time scope. Completely different animal. You also do not want to know how much even a conventional sampling scope costs, even without the lasers.Seems like cool tech to make an extremely short-duration A/D, though. The down side is that, when you are going that fast, you probably cannot have too much coax cable length. The article mentions a "very sharp tip in a vacuum." I would imagine that this would make for a rather large probe.

author: electr_peter
author_rank: Unknown
timestamp: March 05, 2015, 07:57:53 pm
content: Discussion on the same topic here:https://www.eevblog.com/forum/testgear/terahertz-oscilloscope-%28theoretical%29/msg623072/
LeCroy LS140 oscilloscope information - Page 1
Forum section: electronics / testgear

author: malch
author_rank: Regular Contributor
timestamp: March 02, 2015, 04:10:59 am
content: Any opinions on LeCroy LS140 scope from past users?Slim pickings for info on the net. Free bare schematics with NO parts placement.No service manual free or paid.It seems to be manufactured after the 9400 series and before the 9300 series.

author: Wuerstchenhund
author_rank: Super Contributor
timestamp: March 02, 2015, 06:12:01 am
content: Quote from: malch on March 02, 2015, 04:10:59 amIf I remember right the LeCroy ScopeStation LS140 was produced from 1987 to 1998. It was LeCroy's mid-range model (later replaced by the WaveRunner LT) while the 9300 Series was LeCroy's high-end. The ScopeStation also shares hardware (and the OS, DOS?) with the LW410/420 Series of Arbitrary Waveform Generators.You're right that there isn't much information about these scopes out there.
Atomic HP Lab Supply from hell - Page 1
Forum section: electronics / testgear

author: kallisti5
author_rank: Contributor
timestamp: March 01, 2015, 01:48:43 am
content: Was poking around on ebay for some old small test equipment for my bench and found this old 1959 HP supply:http://www.ebay.com/itm/HP-721A-0-30V-DC-Power-Supply-/171694567828?pt=LH_DefaultDomain_0&hash=item27f9cb3194Looking at the picture I was left scratching my head at its condition. The last picture gives it away. "WSMR"https://en.wikipedia.org/wiki/White_Sands_Missile_Rangecirca 1959 equip, the home of the first atomic bomb test, *and* it looks like it had a fireball go over it. Interesting.

author: scatha
author_rank: Regular Contributor
timestamp: March 01, 2015, 02:25:06 am
content: That's why I tend to leave the decals on my used test equipment (particularly for ex military and NASA gear), you really get a sense of history.

author: LabSpokane
author_rank: Super Contributor
timestamp: March 01, 2015, 02:34:03 am
content: WSMR is a very large place with LOTS of stuff going on, most of it being non-nuclear.Edit: Trinity (July 16, 1945) was the only nuclear bomb test at WSMR. The rest of the continental testing was done in Nevada.http://www.abomb1.org/pdf/ustests.pdfThat is not to say that the meter listed didn't see some interesting times.

author: dom0
author_rank: Super Contributor
timestamp: March 01, 2015, 08:55:29 am
content: QuoteLooks the part, too

author: VictoriaGuy
author_rank: Contributor
timestamp: March 01, 2015, 06:15:19 pm
content: Those 'phone photos with no lights' ads are sometimes an attempt to mislead but often just from an inexperienced seller. (One of the few times I was deliberately cheated on ebay was from a ham gear seller with great pics of gear, all reclining on red velvet...)On impulse, I bought an HP 414A from a seller who described it:QuoteThe pictures were the 'no lights' variety. I'll report here once it arrives.

author: kallisti5
author_rank: Contributor
timestamp: March 01, 2015, 11:52:31 pm
content: Quote from: VictoriaGuy on March 01, 2015, 06:15:19 pmOoh, the HP 414A looks interesting. Is the top display mechanical?I ended up getting this 721A:http://www.ebay.com/itm/111609626760Simple enough a 12 year old could get it back in spec :-). I mostly like the small size, something that will easily fit on my limited workbench space. (although the 250ma limit kind of sucks). Sure I'll want to recap it since it's ~1959 vintage.
E7495 at Auction - Page 1
Forum section: electronics / testgear

author: avvidclif
author_rank: Regular Contributor
timestamp: March 01, 2015, 01:51:55 pm
content: There are a bunch of E7495s at govt auction in Ohio. All but 1 are under $100, lasts 2 more days. If anyone wants one to play with.FWIW

author: JohnnyBerg
author_rank: Frequent Contributor
timestamp: March 01, 2015, 02:35:53 pm
content: I had to google a E7495:Looks fun to play with

author: avvidclif
author_rank: Regular Contributor
timestamp: March 01, 2015, 02:49:05 pm
content: Hey at least it wasn't the other porcelain fixture in the bathroom

author: VictoriaGuy
author_rank: Contributor
timestamp: March 01, 2015, 05:53:05 pm
content: http://www.ebay.com/itm/HP-Agilent-E7495-Base-Station-Test-Set-w-Opt-200-210-220-510-600-700-BROKEN-/281614364749?pt=LH_DefaultDomain_0&hash=item419186304d
Elektor '82 PCB check - Page 1
Forum section: electronics / testgear

author: necessaryevil
author_rank: Regular Contributor
timestamp: February 27, 2015, 09:53:07 pm
content: Hi I'm looking for some feedback on my pcb design. My design has been in the drawer for a while. If anyone thinks my pcb layout is complete crap, I'll start over.I have made a pcb for the Elektor December 1982 bench psu. I don't have the english article (anyone?), but I have included the schematic. I have left out the sense lines.PCB size: 100x50mmA few components such as the main filter capacitors and the regulating transistors are not mounted on the pcb, this should make it easy to modify the circuit and it also keeps the pcb compact

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: February 27, 2015, 09:57:02 pm
content: Quote from: necessaryevil on February 27, 2015, 09:53:07 pmOops, I guess you powered your computer with it?

author: necessaryevil
author_rank: Regular Contributor
timestamp: February 27, 2015, 10:01:36 pm
content: QuoteNah.. I would recommend a switching power supply for this purposeI accidentally hit the post button before I finished writing, it's now fixed//editI was really sleeping... I posted it in the wrong section too, it should be in projects.

author: necessaryevil
author_rank: Regular Contributor
timestamp: February 28, 2015, 02:16:52 pm
content: Thank you very much, Wilfred! You have my PMDifferent editions of the Elektor magazine aren't always the same and sometimes articles are published in different months.

author: Neganur
author_rank: Unknown
timestamp: February 28, 2015, 07:29:08 pm
content: what's that software? It looks so familiar to me

author: JoeO
author_rank: Frequent Contributor
timestamp: February 28, 2015, 10:20:05 pm
content: I would also check in the first 3 issues of 1983 to see if there were any corrections/modifications to the design.

author: necessaryevil
author_rank: Regular Contributor
timestamp: March 01, 2015, 02:51:13 pm
content: Anyone an opinion about my layout?@JoeOThank you, I'll try to find the 1983 articles.@NeganurI used Multisim and Ultiboard from National Instruments.
Flir E4 hack gone wrong  - Page 1
Forum section: electronics / testgear

author: kolb
author_rank: Newbie
timestamp: January 26, 2015, 02:46:51 am
content: I'm in need of assistance from someone that knows what they are doing on these. I have a FLIR E4 with firmware 1.22 that I had a buddy do the update on. The resolution is great now, multiple color palettes are available, and I get the "special edition" banner at boot up. I am having a problem where the MSX is not working, or available in the menu, but the digital camera does work. Also, the menu for the "crosshairs" doesn't make any changes and occasionally freezes up.If this is something you could help me with, I would gladly send PayPall, check, cash, first born child etc. for your time and effort. I'm a little scared to mess with it more as it SEEMED the instructions were pretty clear but I know NOTHING about these things. ANY help would be greatly appreciated. Please PM if you can help. THANKS!!

author: cctaco
author_rank: Newbie
timestamp: February 23, 2015, 03:13:17 pm
content: How did it all sort out? Did it get fixed?

author: kolb
author_rank: Newbie
timestamp: February 23, 2015, 04:34:27 pm
content: It did. I had to send it to someone on this forum. They were impressed with HOW f'd up it was but did manage to line it out. I should have it back in a couple of days.

author: DJ
author_rank: Unknown
timestamp: February 23, 2015, 06:23:26 pm
content: Any information on how to avoid your experience would be useful (specifically, how did your friend do the mod which screwed it up)

author: kolb
author_rank: Newbie
timestamp: February 23, 2015, 07:06:19 pm
content: I wish I knew but I don't. It was a "drop off and call me when done" sort of thing. Well, when the call came it wasn't all good news. Lol. The guy that fixed it is on this board. I'll let him post up his findings if he wants to. I dont want to say who it is since he might not want that info out. I was happy he agreed to help me out of a jamb and that's the least I can do. It was something about the CFC file being messed up by the guy that originally worked on it but that's all I know. Some great people in this board.

author: kolb
author_rank: Newbie
timestamp: February 28, 2015, 01:18:59 am
content: DaveWB gave me permission to say he fixed it. Said it was "impressively" screwed. You'd have to ask him what was wrong or maybe he'll post up here. It's fixed now though and all I can say is W O W!! This thing is incredible. I'm gonna go look for UFO's with it now!! Lol

author: DaveWB
author_rank: Regular Contributor
timestamp: March 01, 2015, 07:10:58 am
content: Quote from: kolb on February 28, 2015, 01:18:59 amYes, it was FUBAR, basically fixed it by playing around until I found the encryption key and worked backwards. Getting it to connect was a task in itself as he messed with something else too. I can't complain he offered me a nice dinner for fixing it

author: kolb
author_rank: Newbie
timestamp: March 01, 2015, 08:01:20 am
content: Dave, did the hotdogs get there yet? I put them in the mail...