I have first dibs on an amp like this. PCB based 70 W Stereo amp using 4 X EL34 tubes, no controls except for front mounted bias adjust of the 12AX7 pre amp tubes. Yes, the bias adjust ports look like two tube sockets. It’s either convert it into a guitar amp or let a teenager in the family who has a keen eye to sell it, sell it. I think I’m going to let him try to sell the most likely non working Stereo, there are speakers, a tuner and a turn table. If he can’t sell it, then I will have no choice but to tear into it. I should add that it is tube rectified, which makes it more interesting to me as my big amp is SS rectified. And, the amp in question is a dynakit, not the dynaco in the attached picture.