This amplifier is a model TPA-1075 with high pass filter.
75 watt output. Power input is 125V, 50-60 CPS. 200W max 25w
standby. Output is suitable for class 2 wiring. Amp is a solid
state with transistors, not tubes. This is an old amplifier with
service notes written on the bottom; the earliest date is 1984.
It has been rebuilt.