ceborg999
I recently purchased a used MC275 but the tubes are very dim.
Just measure the heater voltage, should be 6.3v. If it’s close don’t worry, some tube (brands) have different intensity heater glow.
Cheers George
McIntosh MC275
Hi all. I recently purchased a used MC275 in very good condition. The original owner said he had it service not too long ago. The amp appears to work fine but the tubes are very dim. I had them tested and they are fine with about 1/2 life still on them. Not sure what to do. Do I need new tubes or is there an adjustment I need to make? If I need new tubes then could someone give me an idea what to get and where to place them on the amp (which slots)? I want quality tubes so please, ANY guidance would be appreciated. Thank you