Multiplication and sampling circuit (CB8865E)

This circuit was found in a 1968’s General Electric documentation. The circuit uses components from that time.

| Clique na imagem para ampliar |

AD Converter Circuit Test (CB16683E)
This circuit was found in Intersil's 1992 documentation consisting of a test for ADc0801 and...
Tone activated Triac (CB7234E)
This circuit uses a resonant reed switch at the trigger frequency. The circuit is from General...
Optical Link Transmitter (CB1364E)
This simple circuit for an audio link uses a lamp, which has a very poor frequency response, but...