This circuit was found in Mullard's 1960s transistor manual. The circuit employs contemporary germanium transistors and operates at 1.65 kHz.
This circuit was found in a telecommunications publication of 1978. Its purpose is to obtain...
This setting appears with variations at various points on this site. This is from a Motorola...
This circuit is from a 1967 documentation. The circuit uses germanium transistors and has an...