This amplifier with old germanium transistors is from a 1957 documentation. The power is a few hundred milliwatts and the transformers are common types of driver and output of the time.
This circuit was obtained in the Motorola Linear Interface ICs of 1993. The current is determined by the...
This circuit with two power transistors was found in Radio Electronics magazine from October 1960....
This simple electronic toy organ produces an interesting sound, which can be used by the most...