T526L is a receiver and Audio Amplifier inside, its suitable in AM &FM Stereo also the unit is made by HH SCOTT at 70s.
Appearance of the amplifier is THIS LINK.
An edit schematic are shown below:
From the schematic above, it appears that this circuit consists of several blocks, including:
pre-amplifier, voltage amplifier, servo driver, Over Current Protection, Driver amplifier and Final Power.
The initial amplifier or pre-amp uses transistor number 2SC374.
Secondly, transistors for voltage amplifiers use the number 2SA661.
Next is, the servo driver uses transistor number FCS9013.
The amplifier driver uses the numbers 2SC1166 and 2SA661.
Finally , the power transistor uses the TIP31B number.
