[Amps] 30L-1 and 572B

[Carlos Avellanet [KF4RRN]]

Thanks for the quick reply and info on the tubes Carl.  As for the relay,
yes, I never connect an older amp to a newer radio direct, even when some of
them do work.  I have the little Ameritron amp interface that works with my
SB-220 and L-4B.  I am sure it would works just fine with the Collins.
Hopefully I'll get to buy me a Collins radio to go with the amp--wishful
thinking-- and then I won't have to worry about it. ;>

73,
Carlos. KF4RRN



>  There is one item that could be fatal to your exciter if you have a
modern
> solid state rig. the 30-L1 keying ckt uses  120 volts for the ant. relay.
> I'd strongly suggest you look into the use of "soft keying" setup to
reduce
> the keying voltage requirements. you need to look closely at things like
the
> filter caps, and any sign of overheating or other damage also.!!!
>    good luck with your project.!!!
>    carl / kz5ca



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