This amplifier was found in a 1957 Rayrtheon documentation. The circuit can be fitted with a BC558 transistor. Driver and output transformers can be obtained from unused transistor radios.
The current drained by this circuit, from a 1976 documentation, is 3 mA and the cut-off frequency is...
Based on the MC1488 or MC1489 operational amplifiers, this circuit has a 5000V isolation driving a...
With its high power and high performance, this power amplifier is ideal for high quality sound...