Issues with mini JCM copy

imgumby001

New member
Hello all!!

This is my first post here, so I’d like to say thank you to everyone, and that I’m glad to be here. I’ve been a lurker for a long time, and some my recognize me from other forums/groups.

I have an ongoing issue with a JCM 800 type circuit. Firstly, the amp has no power. It’s listed as 25w (2 6l6), but seems to be putting out about 1w. Secondly, it red plates near any type max vol/gain settings. Adding bass near max also starts a red plate. The circuit has a pentode/triode half power switch that does nothing, so I’m not sure if my issues are related, but I don’t really need it, so I’m also wondering if I can delete it from the circuit and how to go about safely removing it. My apologies up front for my ignorance.

Thanks all!
 

Attachments

  • KLD JCM25 Schematic 20200327.pdf
    126.6 KB · Views: 45
  • KLD JCM25 Voltage 20191201.pdf
    84.4 KB · Views: 43
  • KLD JCM25 layout 20191201.pdf
    147.5 KB · Views: 31
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