ZR4400
Member
I see my 2b Coli head #K254 with the loop mod is a close "relative" of Markedman's #K256. Hello brother!
You are correct Gjgo, the loop mod is like an attenuator, that allows the 6 power tubes to be added to the preamp signal.
You are correct Gjgo, the loop mod is like an attenuator, that allows the 6 power tubes to be added to the preamp signal.