This dual balanced modulator configuration was obtained in a 1980s telecommunications documentation. The circuit makes use of transformers and the diodes are commonly used.
This circuit is from a 1965 Motorola documentation. The transistors are of the time as is the...
This circuit was found in a 1966 General Electric book. The triac and the day are from that time...
The purpose of this circuit is to modify the sound of organs so that they resemble the sound of a...