Manual Clock Pulser (CB6467E)

This anti-bounce circuit was found in a 1967 US documentation. Modern transistors such as the 2N2222 can be used. The circuit acts as a shield.

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Low Pass Filter (CB5198E)
This circuit uses only passive components calculated for the desired frequency. We found it in an...
Pocket Signal Generator (CB13159E)
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Frequency divider with varicap (CB6826E)
Found in a 1965 Electronic Design, this circuit divides the frequency of a 50 MHz signal by 2. The...