[Amps] 2x 4cx1500b Rl

[Peter Voelpel]

I calculate about 1200 ohms as well by using the formula:

(Ua-Ug2)/Ia*k

with k=1.6 for Ab1

73
Peter, DJ7WW

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Benedikt
Sveinsson


Hi all

I brushing off a old project that I have been collecting parts for quite
some time.

Was going to build a big SSPA, but I just can't throw this old project away,
have all the parts and I always wanted to build a tube amp for HF, built few
for vhf-uhf.

I'm now building the tank, and I have some questions about the Rl value

What value can I expect for these two tubes operating @3000v, max current is
about 1.5A class AB - the normal calculation is giving quite low value
is about 1200 Ohms - Does anyone here have some real world experience what
to expect or what values I should use when measuring the tank?


73, Benni TF3T



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