This PNP transistor power stage was found in the May 1969 issue of Radio Electronics magazine. The circuit uses a transformer for excitation and requires 10W input for full output power.
This circuit is from 1995 documentation. It consists of a battery of 4 instruments driven...
This circuit was found in a 1974 English magazine. We can also assemble it using BC558 transistor for...
Found in Motorola documentation from the 1960s, this timing circuit can last up to 10 hours with...