Giveaway - clearout - Page 1
Forum section: electronics / general

author: TerraHertz
author_rank: Super Contributor
timestamp: July 14, 2013, 12:06:21 pm
content: I need to clear out some of the 'will never use' junk I've accumulated. Normally I'd strip such stuff down for spare parts, but at the moment I'm too busy and couldn't be bothered. Already have too many 'spare parts' as well.So this will be a giveaway.I'm not going to pack and post, so this is pickup in person from near Bankstown in Sth Sydney.First to go: a Siemens K2202 Level Tracer. Telecoms, used to measure circuit attenuation over the audio range 200Hz to 4KHz.It powers up, shows a CRT trace, responds to controls, can get a marker to sweep back and forth, in one mode the tone can be heard from the speaker gliding up and down the range.It's a beautiful, very solid case - I think that was why I picked it up originally. But realistically, I don't have any projects needing such a case.The 'spinner' knob is a 10-turn pot rather than the more typical infinite turns optical device.Downsides:Connectors are those weird 3-pin balanced telecom type. Text on the controls is mostly German. Maybe there's something wrong with the trace brightness control - it works over the lower end of range, but doesn't get brighter above about half way. I never could find an op/service manual for it.I originally had a $10 token price on this. No interest, so now it's free.

author: TerraHertz
author_rank: Super Contributor
timestamp: July 15, 2013, 08:50:16 am
content: Ha ha... people here have greater aversion to boat anchors than I expected.In that case, forget about the $10 price idea. I thought I'd try to discourage whim grabbing, so someone who might actually need these things would have a chance. Apparently that's not going to be an issue.Anyway, moving along... next up is a pile of video security system components, all by Dedicated Microshttp://dedicatedmicrosus.com/2 x Uniplex DX Pro1 x Sprite SX-R (with power supply)1 x Uniplex DX Pro keyboard.No interconnecting cables.I don't know anything about these. They came with some nice gear I wanted.The Uniplex DX Pro units appear to be video encoders, with 16 input channels,VCR in-out, and 2 Monitor outputs, all BNC. Main board uses Xilinx FPGAs.The data connectors look similar to RJ-45, but are different. Ethernet cables don't fit.This pile is free. And if it's not out of here in a week, it's going in the bin.Same with the Siemens thing - if it's still here by the weekend, it's getting stripped down.

author: TerraHertz
author_rank: Super Contributor
timestamp: July 19, 2013, 12:23:54 pm
content: This next one could well serve as the definition of boat anchors.It's an Interview 4500 serial protocol analyzer, from Atlantic Research Corporation.Based on a Z80 processor. Keyboard is a solid capacitive sensing thing, with cheesy 1960's colour scheme.Data storage uses DC 110A min data cartridges, ie tape. One tape included.Unit powers up, but no video, no keyboard response.Worst thing about this is that it won't fit in my rolley bin, so I'm going to have to disassemble it if no one wants it... for whatever.There is of course, no manual. Removing this clunker from the storage shelving made a nice big empty spot. It's not going back there under any circumstances.I'm probably going to trash this along with the other items above, this weekend. So if you want this, better email me quickly.

author: TerraHertz
author_rank: Super Contributor
timestamp: July 19, 2013, 01:09:46 pm
content: Next, two redundant switching PS units from a HP ProLiant DL360 rackmount server.Both work. Included is the combiner unit, with output connector that looks like standard ATX form.Could probably ebay these for a few $, but who cares?The ProLiant was dead, and has been stripped.

author: Monkeh
author_rank: Super Contributor
timestamp: July 19, 2013, 08:33:38 pm
content: Quote from: TerraHertz on July 19, 2013, 01:09:46 pmIt's not. Note that there's no +5V rail, just a standby rail.

author: David_AVD
author_rank: Super Contributor
timestamp: July 19, 2013, 10:14:03 pm
content: Is there a local hackerspace that may be able to use your unwanted gear? That's what I did with some stuff last year.

author: SeanB
author_rank: Super Contributor
timestamp: July 20, 2013, 04:56:24 am
content: Know the feeling, went to the scrapyard yesterday with 80kg of old PC cases. Pulled all the hard drives though, so I have now a lot of small drives, from 40M to 300G, in IDE and SATA.

author: TerraHertz
author_rank: Super Contributor
timestamp: July 20, 2013, 06:17:54 am
content: Quote from: SeanB on July 20, 2013, 04:56:24 amFunny you should say that. Pic below was while just getting started on the pile of junk PCs recently. Similar end result - trip to recyclers. Except I also kept the CDROM & floppy drives, PSUs and other guts. CDROM drives = small powerful magnets from the optical head.Btw, old drives are quite useful if you have a USB external drive dock, like this:http://dx.com/s/usb+hd+dock+ide+sataOnes with both IDE and SATA are great for using old drives as backup stores, and recovering stuff off drives from old PCs.David_AVD: no hackerspaces anywhere near, so far as I know. If there are, they don't seem to be reading this forum. Or, they have more sense than to want this junk.

author: TerraHertz
author_rank: Super Contributor
timestamp: July 21, 2013, 04:26:31 am
content: This one is so nice... and so useless. A brand new, in box, never used, paperweight. Err... I mean a Microchannel bus, 8-port serial card. Complete with all manuals and a 3.5" floppy with drivers.Almost a museum piece. If there are any museums still using IBM Microchannel architecture computers. Which I strongly doubt.I can't even faintly remember how I came to have this.As before, this is free to anyone that wants it. Hell, since it's in a smallish light box I'd even post, if you pay postage.Otherwise it's landfill.

author: TerraHertz
author_rank: Super Contributor
timestamp: July 21, 2013, 04:43:22 am
content: Next, a big box containing three Microtouch laminated glass touch screen sensors, and an unrelated touch sensor PCB.View area is 360mm x 310mm.Model number: 83-4041-01 R2.1 077-99.These were intended for mounting in front of glass CRT arcade games. But they'd be much nicer in front of an LCD.The catch is, there's no drive electronics included. The one PCB in the pics is unrelated except for also being made by Microtouch. It doesn't have any connectors that match these screen overlay units' cables.I'm not sure what the technology used on these sensors is, and I don't have any data on them. The papers shown were in the box, but are only some advice on mounting methods.Getting them working should be a fun project, they are large, and there's three of them.Personally I prefer mouse-driven GUIs. No gorilla arm, no screen smudges. But then I think iPads and tablet computers in general suck, so what would I know?Free for pickup, or in the bin they go.

author: kaz911
author_rank: Super Contributor
timestamp: July 21, 2013, 04:58:39 am
content: Quote from: TerraHertz on July 21, 2013, 04:26:31 amHaha nice Digiboard. I used to be certified Digiboard Technician a long time ago. (Early 90's) - and have installed TONS of those cards in banks and shops - that was what the Danish debit card system software used for back office communications. An 8 port card would serve 2-5 till's plus redundant connection to the debit card clearing system via dial up modems. Many on Microchannel - since the banks used IBM pc's. Darn flashbacks..... Makes me feel old...

author: SeanB
author_rank: Super Contributor
timestamp: July 21, 2013, 05:51:28 am
content: Funny enough Friday I took apart a credit card POS terminal..........Yesterday I reduced to parts a 2kVA ferroresonant UPS, has 40 2N3773's as drivers for the transformer, but it is faulty, a few of the TO3 cans have holes blown in them. Driver board also has a chip missing a part of the top.Must upload the pics and write it up.Got 20c per kilo for the PC's.

author: TerraHertz
author_rank: Super Contributor
timestamp: July 21, 2013, 09:15:36 am
content: Holes in metal TO3s - that's something I've never seen.

author: SeanB
author_rank: Super Contributor
timestamp: July 21, 2013, 12:13:56 pm
content: These only have holes, I have seen them with the top blown off when they die. As the main DC bus is an 80A breaker with a 200A internal fuse you do have a lot of energy at the bus voltage of 48V. Main capacitor is a 55000uF unit with some extra bypassing of 2 2uF 1000VDC film capacitors that have screw terminals on them.Pics attached of the unit during disassembly and being turned into parts for the scrappie.