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I use an IET DE-5000 LCR meter. Mine has both tweezers and Kelvin clips (i installed these to replace the alligator clips that came with it). It will test ESR at 100kHz and capcitance at 100/120/1k Hz

Shapeways shipping to UK has got stupid expensive lately. I need to find a UK based 3D printer that will SLA print in nylon. PS If I do find someone, will you make the models available for DL? Thanks

I modeled these up and put them on Shapeways, and I understand some people have had success with those. You can buy prints, or you can download the models and print them yourself. Here are the links,

There are existing 3D models for these. I'm not sure where I got mine, probably Thingiverse or Tinkercad, but I've printed a bucn of them and they work. I'm happy to supply either the models via email

I looked tonight at Nebraska Sales & Surplus. They have them. the 555 driving a relay looks more and more attractive. https://www.surplussales.com/Relays/RETimeD-5.html

I did this review of 3 easily available units. It is still valid today. http://www.condoraudio.com/wp-content/uploads/Reviews/How-to-Choose-an-ESR-meter.pdf https://www.evbesrmeter.pt/

They seem pretty unique…two of the 1/4-turn latches along the top…an insulation layer on the inside…none of the dozen or so different modules I have here have the same type of side panel. Sphere

I have added another picture to the album (/g/TekScopes/album?id=266234) showing all six candidates I have tried for replacing missing thumb nuts on 500-series scopes and plug-ins.

right. I was thinking about a 555 timer chip driving a relay. places like surplus sales of nebraska, or perhaps sphere might have the originals. --rick chinn

will the side panels from other tm5xx instruments fit the AA501? --rick

Hi George, Yes, I will admit that is my bench. In terms of the 465 videos. The vertical section will post on Friday. And I hope to be recording the Horizontal and time base this weekend. That should

Zen, Is this your YouTube channel? https://youtu.be/GYkjuE7Pez8 The videos are great! I’ll be watching the 465 video later today. BTW, I’ve been using Svg2Shenzhen in conjunction with Inkscape to

That was a miss label. Q500 and Q510 are the same part number it is 2 discrete transistors. I have it updated. Zen

I use an Extech LCR200 for in-circuit testing. It computes the overall impedance at your specified frequency. Just make sure you COMPLETELY discharge the capacitors using a 25K high wattage power

Everything you ever wanted to know about ESR and various designs: http://kripton2035.free.fr/esr-repository.html I built one of those designs and it was very helpful. There's also an ESR adapter for

Hello again, My main thread is " 2712 SA with display (and normalization) issues". Due to the large number of electrolytic caps this SA has, I wonder if anyone can recommend a (not too costly)

Thank you! Ronan

Both my PS 503A modules have clip-in side panels. And as to the side panels being perforated or not, my assumption for which ones are perforated and which are not is it is heat-related, but this is

I have a small collection of TM500 plug-ins, of which these have these latches: PG506 1 latch missing TG501 SG503 Both latches missing FG503 PS503A I agree with Dan on the part-numbers, which are also

You can use Python scripts to generate the Kicad footprints for the PCB edge connectors. I've done it for my TM500/5000 and 7000 series extender projects. https://github.com/anotherlin/tek_tm_ext