AMI Model C Jukebox Amp - Model "CC"

Hi Guys,

I just picked-up and AMi C Jukebox and the amp schematic contained in the service manual differs from my amp. From the limited info I could find on the web it seems as if there are to versions. One version uses a 1N34 diode in the "Automatic Base Tone Control Circuit." My version contains an additional tube, a 6H6 instead of the 1N34. I would think the 6H6 version would be an earlier version?

I have also found that there are some minor circuit/component differences. My particular amp uses some ceramic type resistors that are unmarked and I would like to identify them correctly before replacement.

Does anyone have a schematic for the 6H6 version or any production info?

Thanks,

Matt