Ive salvaged several power tubes using 120VAC and a 200W light bulb in
series as a current limiter. A bigger bulb would be better but I used what I
have.
Carl
KM1H
----- Original Message -----
From: "Vic K2VCO" <vic@rakefet.com>
To: "Paul Decker" <kg7hf@comcast.net>
Cc: "Amps reflector" <amps@contesting.com>
Sent: Friday, September 11, 2009 10:50 AM
Subject: Re: [Amps] LK500-ZB
> Paul Decker wrote:
>>
>> Would I just put this to the heater pins?
>
> Between ONE of the filament pins and the grid! Across the filament would
> of course destroy it.
>
> My experience with these tubes has been that it's common to see a short
> that develops only
> after the filament warms up. In this case, you wouldn't be able to do this
> with a cold tube.
> --
> 73,
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco
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