Tube stereo power amplifier. Remake of Dynaco Stereo 70 reusing only the chassis and the transformers.
The newsletter from July 29 1974 is announcing the release of the ST-70 factory rebuild, but that never actually happened. It was finally released as a kit through Old Colony Sound Lab (Audio Amateur's parts division) in 1977. The 4/77 issue of Audio Amateur included complete plans for the ST-70-C3.
MSRP (US new retail)
|Power output||35 Watts per channel|
|Overall negative feedback|
|Hum & noise|
|Power supply energy storage|
|Tube complement||(2 matched pairs) 6L6, (4) 6CG7/6FQ, (3) 12AX7|