[Test-Equipment] Eico 950 capacity bridge Operating Instructions

[Ray LaRue]

Thank you Gary, that was helpful.
Ray, W4BYG

On 4/4/2020 9:33 PM, Gary H. Harmon, Jr. wrote:
> http://bama.edebris.com/manuals/eico/
>
> Here you go Ray.
>
> Gary H. Harmon, Jr. - K5JWK - HAM Radio, HEATHKIT, and ATARI Archaeologist
> 6003 Archwood
> San Antonio, TX 78239-1504
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>
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>
> -----Original Message-----
> From: test-equipment-bounces at mailman.qth.net [mailto:test-equipment-bounces at mailman.qth.net] On Behalf Of Ray LaRue
> Sent: Saturday, April 04, 2020 8:23 PM
> To: test-equipment at mailman.qth.net
> Subject: [Test-Equipment] Eico 950 capacity bridge Operating Instructions
>
> This is going back many years, but maybe there are a few "Old Timers" on
> this list to ask.
>
> I obtained at a hamfest, an old Eico 950B cap bridge which is in
> excellent appearance and apparently good condition.   I reformed the
> capacitors and it seems to be working.  I also have the schematic as
> well as the original kit building instructions.
>
> However, there are no operating or user instructions with it, beyond
> just checking the bridge with a precision 200k resistor.
>
> I've been told this bridge is superior to today's low voltage capacitor
> checkers for testing older higher voltage capacitors, because it checks
> them closer to their operating voltages.  But I only read about 45 volts
> across the test points and that doesn't change when varying the front
> panel voltage control.
>
> FYI:  I also have later more modern testers such as Antek Blue ESR
> tester; a Sencore Z Meter and a Tektronix DMM916 for capacity checks.
>
> Is there anyone that has used the Eico 950B tester extensively in the
> past or present, that can clue me in on the best ways to check NOS HV
> electrolytic caps with it?  Or, is there an operating manual available?
> I have checked BAMA for one, no luck.
>
> Your attention is appreciated.
> Ray, W4BYG (with a bunch of tubed classics and antiques to refurbish)
>

-- 
They say a smart person learns from their mistakes.  A
wise person learns from the mistakes of others.



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