Found in an American documentation from the 90's, this 1.5 A power supply provides 1.5 to 22 V of output. The integrated circuit must be mounted on a heat sink.
This old fashioned transistor amplifier was found in a publication of the year 1958. Transformer...
This circuit is used in VHF and UHF superheterodyne receivers. The circuit is from the 1964 RCA...
This circuit was found in ancient American documentation. It makes use of the operational...