We found this TTL power supply circuit in the December 1972 issue of Radio Electronics magazine. The circuit uses a 1 A transformer and the 2N3055 transistor must be equipped with a good heat sink.
This circuit was found in a 1971s English magazine. We can still assemble it using BC548...
Using power transistors of the time, this source was published in Radio Electronics magazine in...
This notch filter or reject filter rejects signals of a certain frequency with good selectivity. The...