This circuit is from a 1964 Electronic Design. The transistors are from that time. They can be replaced by current equivalents.
July 2017 - This new Murata product is available from Mouser Electronics. It consists of a module...
This circuit was found in Motorola documentation from 1968. Transistors can be modern equivalents, just...
We found this circuit in the April 1978 issue of Radio Electronics magazine. The power supply must...