Early Mark 1

[DC3 Gridlock]

I noticed that it doesn’t have the resistor on the plate of one of the output valves and the wire being wrapped around shielded cable wires.

Regards

Mark

Thanks, PM sent on my conversation with Mesa.

Should I be worried about the missing resistor and take it to my tech?

Thanks again.
Grid

 

[DavidMenke]

Thanks, PM sent on my conversation with Mesa.

Should I be worried about the missing resistor and take it to my tech?

Thanks again.
Grid

Best person to speak to at Mesa is Mike Bendinelli who has been there almost since the beginning. You could also send the amp to them, just the chassis, for cost, and they can go through and restore it to it's original state. The Mark series of amps may even be able to retro fit your amp into a new cabinet. (worth checking out) Or even a solid wood cabinet could be a choice. Those Mark one series are a keeper! Fix it up and play it for the next 50years.

 

[mark1406]

Thanks, PM sent on my conversation with Mesa.

Should I be worried about the missing resistor and take it to my tech?

Thanks again.
Grid

No I wouldn’t worry about it at all. Some amps had it and some amps didn’t.

Regards

Mark

 

[Don]

What does the Boost switch do?