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Old 26th Apr 2012, 5:58 pm   #15
sparkymike
Octode
 
Join Date: Dec 2006
Location: Colchester, Essex, UK.
Posts: 1,063
Default Re: RSC Guitar Amplifier.

I now think I have worked out the valve line up. It is very slightly like the Mullard 7watt stereophonic amplifier, but one channel.
This amp used ECC83 and two ECL 82's and EZ 81. My unmarked valve would seem to be ,or should be an ECL 82 I think. I had thought it was single ended output which was leading me up the blind alley, but I am now certain that it is push pull, as most of the resistors on both bases are duplicated. The ECL 82 looks like it is used in both modes ie. triode and pentode, thus saving components on a low price amplifier.
A circuit would still be very handy.
Mike.
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