Found in a Popular Electronics this circuit has double regulation. The integrated circuits used provide a maximum current of 1 A and must be provided with heat sinks.
This circuit was found in a 1977 Signetics manual. The 556 consists of a 555 double and the...
The characteristics of this amplifier that does not require a symmetrical source are given in the...
Found in 1969 RCA documentation, this circuit maintains constant current in the filament of a lamp...