Wednesday, 30 October 2013

Re: AW: [Amateur-repairs] Test jigs for potentiometers, TO-220 devices?

 

On Wed, Oct 30, 2013 at 10:27 AM, Jim <n6otq@yahoo.com> wrote:
Did I leave out the part where I said that I had dozens, perhaps hundreds, of these devices and I don't want to rebuild a test jig every time I want to use a device?
And did I also leave out the part where if I'm going to be testing dozens, perhaps hundreds, of these devices at a time, that I don't want to squeeze three separate alligator clips for every device, and replace the clips when they invariably go bad after a hundred squeezes?


Jim,

No, you didn't leave those parts out, and neither did you omit "I'm willing to discuss and I welcome suggestions."

Since the leads of TO-222 devices are spaced 0.10" apart, you can rely on a piece of an IC socket for your DUT receptacle. You could also use a small plug-in breadboard--just a few bucks--and set up your test circuit on that. All the sockets on those are spaced 0.10" as well. I have a few circuits I've "breadboarded" but then leave intact for later use. 

73,

Todd
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