Crystal converter (CB7327E)

This circuit was found in a Popular Electronics from the 90's. The circuit can be used to convert signals to frequencies up to 25 MHz.

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12V x 40W Flasher (CB6765E)
This circuit was found in a 1965 General Electric documentation. SCRs and unijunction may be...
Class A inverter (CB7181E)
This circuit was found in the 1967 RCA SCR manual. The circuit generates approximately 300 V at a...
14-Stage Divide-by-16,384 Counter - 4020 (CB182E)
Frequency divisions up to 18,384 can be performed with the basic configuration of a 4020 as shown...