Hello fellow tube-heads! I have a pair of Atmosphere M-60 amps that I could use help with. They are playing, but not up to their former glory. My actual knowledge of electronics is very poor, but my research has lead me to swap tubes (after which I replaced one pair). Then I checked output impedance (it was way off from what I was lead to believe was normal). This meant I needed new potentiometers...and now I am out of my depth. I have called around the Seattle area for help, but no one wants to dive in without some specs or technical manuals to guide them on such obscure amps. I am curious if anyone has suggestions. Thanks for any time or help offered.
