I'm searching for a solid state amplifier circuit, a Henry model C130A30 (for VHF FM). The one I have seems to have been modified, I see some resistors strangely connected both at base and collector; also after an extensive search (Google, Alltheweb, data sheet pages, and so) I did not yet found nearly a bare specification of the transistor used. Input is specified in the range of 20..40 Watts, and output of 130 Watts, and as I see it, the circuit consists of a resistive input attenuator, then follows a first stage with a CD-4778, which drives three CD-4778 (yes, the same) in parallel. All four are B-E open. It has a nice LPF at the output. Very good components with the exception of the above stated resistors.
Thanks in advance
Best regards
Guillermo - LU8EYW.