Hello.
This is my first post here. I have a sunn stagemaster guitar amplifier, built some time in the early 80s. The amplifier has two output channels, A and B, each with a knob adjusting the output wattage from 1 watt to 120. Unfortunately, the shaft for the A channel potentiometer was broken clean off some time before I acquired the amp. I would like to replace it, but I have no idea which part to get to replace it. I would like to have the part before I take apart my amp and am ampless haha. All I know about the pot (if it is a pot and not a rotary switch) is that it has 12 different positions. I have been able to acquire a schematic for the amplifier, which I have attached. I have no idea how to read electronics schematics though, so I have no clue where the pertinent information lies in the document. I've tried calling around my city, and the only place that might be able to do it would charge me more than I paid for the amp in the first place. Any help here would be much appreciated. Thank you.
This is my first post here. I have a sunn stagemaster guitar amplifier, built some time in the early 80s. The amplifier has two output channels, A and B, each with a knob adjusting the output wattage from 1 watt to 120. Unfortunately, the shaft for the A channel potentiometer was broken clean off some time before I acquired the amp. I would like to replace it, but I have no idea which part to get to replace it. I would like to have the part before I take apart my amp and am ampless haha. All I know about the pot (if it is a pot and not a rotary switch) is that it has 12 different positions. I have been able to acquire a schematic for the amplifier, which I have attached. I have no idea how to read electronics schematics though, so I have no clue where the pertinent information lies in the document. I've tried calling around my city, and the only place that might be able to do it would charge me more than I paid for the amp in the first place. Any help here would be much appreciated. Thank you.