Ring Counter with Timing (CB6613E)

This variable timing circuit was found in 1964 General Electric documentation. Circuit uses PUTs that are uncommon components today.

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1W Amplifier (CB23763E)
This small amplifier was found in Radio Electronics magazine from October 1966. It uses a series of...
Switch with automatic shutdown (CB21258E)
This circuit was found in Maxim documentation from the 1990s. The RC circuit determines the...
1kHz Low Pass Filter (CB11553E)
This filter is suggested by the Texas Instruments Linear Circuits Applications, 1986 edition. The...