[Test-Equipment] Should I Import this ESR Meter?

[Carl]

450V will test anything in an amp except for the variables and fixed 
padders, plate blocking, HV bypass caps, and tubes.

Those can either be swapped or use a hi-pot tester which can be built using 
a neon sign transformer. In many cases HV problems become quite visable or 
odorous.

My biggest need is testing mica caps at 300-500V as they are beginning to 
fail at alarming rates. Problems seldom show up with a Triplett 630 or 
similar.

450V or so is also good for testing transformer insulation in receivers, 
test equipment, etc.

Carl
KM1H


----- Original Message ----- 
From: "mikea" <mikea at mikea.ath.cx>
To: "Discussion of Electronic Test Equipment" 
<test-equipment at mailman.qth.net>
Sent: Wednesday, February 03, 2010 9:57 AM
Subject: Re: [Test-Equipment] Should I Import this ESR Meter?


> On Wed, Feb 03, 2010 at 09:45:56AM -0500, Carl wrote:
>> Id be more interested in a device that could test all capacitors at their
>> working voltage. This would include electrolytics up to 2400 uF @ 450V.
>
> Limiting the working voltage to 450 or so seems to be a good idea, though
> RF amplifier builders might want something that goes higher. This has its
> attendant risks, as outlined in <http://mikea.ath.cx/capplant.html>,
>
> -- 
> Mike Andrews, W5EGO
> mikea at mikea.ath.cx
> Tired old sysadmin
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