Hello Rob, Jon, and the group.
The GM328 testers like Rob recommends are good testers.? I have a couple here.? I do not know what experience Rob and his students had with those testers but I found very quickly that none of my GM328 testers would measure inductance or capacitance for low values.? The ones I had would not read (accurately or even ball park) for any inductor less than 3uh and capacitance less than 30pf.? In other words,? it did not and does not measure low values.? I ended up building a VK3BHR version of those testers and it measures low values very well.? If you are not concerned about low value inductance and capacitance then the stock GM328 testers that are so prevalent on ebay and apparently Amazon are good cheap testers.
Thank you.
Jim Pruitt
WA7DUY
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On 7/8/2021 3:07 PM, Rob Frohne wrote:
Hi Jon,
My students and I have been using these cheap transistor testers <>. They will measure fairly accurately inductance and capacitance. It should save you from this problem in the future. You can get them cheaper elsewhere.
73,
Rob
KL7NA
On 7/8/21 2:55 PM, JonI via groups.io wrote:
CAUTION: This email originated from outside the Walla Walla University email system.
After my recent experience discovering the bad capacitor only after
almost complete disassembly of the filter, I'm considering getting an
LCR meter but there's only one catch in my case: it has to be low cost.
I know low cost and reasonable quality stay mostly opposite but in
today's market, the relationship between them has increased...
sometimes.? So what would you recommend? Someone recently suggested an
LC-100A, but then I read that it can arrive with issues that make
reading of low value components impossible.? I suppose I could go that
route as long as it had free returns and only from China as the US
vendors are too expensive for me.
Thanks in advance.
Jon
