EEVblog #1209 - Mailbag - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: May 07, 2019, 04:21:51 am
content: Mailbag time!SPOILERS:Aliens!Northside service company:https://www.youtube.com/channel/UCcMN_sDzaDThDYRBb2Qcahw/featuredNutone intercom system teardown10:08 Royal Digital Diary Teardown12:52 Motic / Swift soldering stereo microscope, also rebadged by AmScope25:03 Texas Hold'em handheld game TeardownTI 30-XS Calculator teardown31:43 Elecrow Crowtail STEAM Edu Kit for Micro:bit36:28 CrowVi USB-C monitor:https://www.elecrow.com/crowvi-13-3inch-portable-usb-c-monitor-non-touchscreen.html

author: T3sl4co1l
author_rank: Super Contributor
timestamp: May 07, 2019, 06:31:37 am
content: Quote from: blueskull on May 07, 2019, 04:59:24 amCompletely unrelated, and not to draw attention to a typo, but I'm reminded of a similar mistake seen in older Microsemi datasheets. Some of their MOSFETs got branded "Thunderblot".Tim

author: Psi
author_rank: Super Contributor
timestamp: May 07, 2019, 07:36:36 am
content: For that price your better off spending $2 more and getting the more common 7-45x simul-focus trinocular stereo microscope.- Adjustable zoom knob (much easier than changing objectives)- Comes with two sets of objectives 10x and 20x- Comes with 2x and 0.5 barlow lens to give you 3.5x to 180x- Has trinocular port which is simul-focus.- Similar working distance when using 0.5 barlow (175mm)https://www.aliexpress.com/store/product/Lucky-Zoom-3-5X-180X-Simul-Focal-Trinocular-Stereo-Microscope-WF20X-Eyepiece-Microscope-For-Soldering-2/300856_32956875343.html﻿Only disadvantages are- The stand is less open and adjustable- Doesn't come with led light.You can get a better stand, just have to pay a little more.microscope LED ring lights are like $15.

author: hwj-d
author_rank: Frequent Contributor
timestamp: May 07, 2019, 02:54:58 pm
content: I wonder, what customs and import taxes are calculated, or does that work somehow without?

author: G7PSK
author_rank: Super Contributor
timestamp: May 07, 2019, 04:04:50 pm
content: I have the AmScope branded microscope had about 9 month now, only came with one LED light but cannot fault it for what I need or want, I have found that the 5 times lenses are not powerfull enough fo me without my glasses on ann with them on the field of view is far to narrow so I just use the ten times.

author: Electronoooob
author_rank: Unknown
timestamp: May 07, 2019, 04:13:14 pm
content: Awesome just purchased the Microscope.

author: McBryce
author_rank: Super Contributor
timestamp: May 07, 2019, 05:30:50 pm
content: That Microscope is also sold in Europe under the name Bresser Biorit ICD. I've had one for years and I wouldn't swap it for anything. The Bresser scope also originally had a single light on the head (which I later replaced with an LED Ringlight), so there's a hole in the right place to add a camera. I've mounted an Andonstar USB scope through the hole. The old version also had a real transformer in the base, making it even heavier.It costs slightly more in Euroland:https://www.ebay.de/itm/BRESSER-Biorit-ICD-CS-Stereomikroskop-LED-Mikroskop-Loten-SMD-Schwanenhals/352648838145McBryce.

author: Electronoooob
author_rank: Unknown
timestamp: May 07, 2019, 05:39:05 pm
content: I want to do board repair but now worried that a fixed magnification scope was a bad decision. Macbook logic boards specifically.

author: McBryce
author_rank: Super Contributor
timestamp: May 07, 2019, 05:58:50 pm
content: I do similar work all the time with that microscope. I have 5x, 10x 15x and 20x eye-pieces for it, depending on what I'm doing. The 20x are too high magnification though, so they never get used, unless you need to look at a single solder joint of an 0201 component.McBryce.

author: Electronoooob
author_rank: Unknown
timestamp: May 07, 2019, 06:00:33 pm
content: Thank you for your insight and experience!

author: NiHaoMike
author_rank: Super Contributor
timestamp: May 07, 2019, 08:12:18 pm
content: Quote from: blueskull on May 07, 2019, 04:59:24 amCouldn't it be possible to make an active adapter to adapt one of those monitors to standard USB + DP?

author: ericloewe
author_rank: Unknown
timestamp: May 07, 2019, 09:07:20 pm
content: Quote from: NiHaoMike on May 07, 2019, 08:12:18 pmShould be possible, but there was no such thing available last time I checked (which was 1-2 years ago by now). The closest thing out there is that some Asus portable monitors can operate as DP monitors using the alternate mode or as a DisplayLink monitor, which is a plain USB device that needs a driver to pass the graphics via the USB connection.

author: SteveyG
author_rank: Unknown
timestamp: May 08, 2019, 05:48:10 am
content: This microscope is really nice. They sent one over to my channel too for review.They do actually have the product on the Amazon.com site for US viewers too:Amazon.co.uk Link:https://amzn.to/2GYGYFVAmazon.com Link:https://amzn.to/2YwFWYX

author: SteveyG
author_rank: Unknown
timestamp: May 08, 2019, 05:51:32 am
content: Quote from: Psi on May 07, 2019, 07:36:36 amI disagree. They are designed for different purposes - the stand is next to useless for electronics work so you will end up spending a fair chunk on a new stand and shipping - when I looked, you'd spend £150-300 on a stand with shipping and import so not worthwhile. The "fixed" magnification is not really a hindrance.

author: artag
author_rank: Super Contributor
timestamp: May 08, 2019, 09:57:56 am
content: I've often seen an LED used as a shunt regulator with a solar cell calculator, Casio too.Maybe the split PCB is to allow a small dual-sided pcb and a larger single-sided keyboard PCB. Lower PCB cost but extra assembly cost.

author: artag
author_rank: Super Contributor
timestamp: May 08, 2019, 10:14:44 am
content: Quote from: Psi on May 07, 2019, 07:36:36 amThat certainly looks like a more modern design. But the long-reach stand is important to get the best out of the scope, I'd regard it as essential if you're trying to set up a good work bench.

author: NivagSwerdna
author_rank: Super Contributor
timestamp: May 08, 2019, 10:34:28 am
content: The reviewed (product placed) Microscope is nice and very like myhttps://www.microglobe.co.uk/zenith-stl-80-x10x20-long-arm-stereoscopic-microscope-p-8276.html?which I bought a few years ago...... however in retrospect I think I would have been a bit better off with zoom... and trinocular would have been nice too.

author: Kleinstein
author_rank: Super Contributor
timestamp: May 08, 2019, 03:22:36 pm
content: LEDs are quite common for voltage clamping in solar powered calculators.The LED might even outperform a 2 V zener.

author: jancumps
author_rank: Unknown
timestamp: May 08, 2019, 03:26:29 pm
content: Quote from: Electronoooob on May 07, 2019, 05:39:05 pmBuyers remorse in less than 2 hours

author: NivagSwerdna
author_rank: Super Contributor
timestamp: May 08, 2019, 04:03:21 pm
content: Quote from: jancumps on May 08, 2019, 03:26:29 pmI love mine... I'm sure they will love theirs too. Don't know about the reviewed microscope but it looks very similar to mine and as shown on the video you can get a crystal clear view... I have dodgy aging old eyes and SMD is a joy when using it. If I was professional/richer I would definitely trade up though.I recommend a 4CH oscilloscope to Electronoooob though!

author: Electronoooob
author_rank: Unknown
timestamp: May 08, 2019, 04:38:40 pm
content: Thanks folksI do have 4 channel oscilloscopeI'm certain you can guess the model.Apparently the microscope will arrive tomorrow at some point, I really hope I like it. I'm more anxious than excited now though lolAt least it's amazon so returning should be easy enough if there's a problem.Sent from my CLT-L09 using Tapatalk

author: SteveyG
author_rank: Unknown
timestamp: May 08, 2019, 08:13:12 pm
content: Quote from: Electronoooob on May 08, 2019, 04:38:40 pmI honestly think you'll be happy with it. I've just spent the evening using mine instead of my new Amscope SM-4TPZ - it is far less bulky and obtrusive.Image quality is crystal clear through the eyepieces:https://youtu.be/0hHRV0wV34E

author: hwj-d
author_rank: Frequent Contributor
timestamp: May 10, 2019, 05:10:26 pm
content: Got my Swift-Microscope today, and it is an absolute fascinating not so bulky but handy tool.

author: ercapoccia
author_rank: Regular Contributor
timestamp: May 16, 2019, 02:55:45 am
content: I wonder how a pair of 0.5x objective will perform on a swift/amprobe microscopehttp://www.opticalvision.co.uk/products/x05_objective_pair.html