Then why do some amplifiers' manuals tell you to monitor the grid current
and give you a meter function for that purpose?
----- Original Message -----
From: "Rich..." <2@mail.vcnet.com>
To: "ARNE GJERNING" <gjerning@flash.net>; " AMPS" <amps@contesting.com>
Sent: Thursday, February 14, 2002 12:37 AM
Subject: Re: [AMPS] SB-220
>
>1. Does anyone have available a 20M (L3) and 15M (L2) input coils they
>might part with?
>
>2. What is the full scale meter movements for both the plate and
>multimeter?
? 200uA / c. 1100?
> I have 2 open meters and need to replace them. Original Heath
>meters not necessasry for my plans. I will only need to monitor plate and
>grid current.
>
? Monitoring grid current is of zero value because tune-up has nothing
to do with grid current. Tune-up involves tuning for max out with max
drive (<145w-pep) using a tuning pulser or a keyer sending dits at 50wpm.
Thus, only a relative RF output meter is needed for tuneup.
>
>
>--
>FAQ on WWW: http://www.contesting.com/FAQ/amps
>Submissions: amps@contesting.com
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>Problems: owner-amps@contesting.com
>
>
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
end
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