Photodiode selective preamplifier (CB7816E)

Found in American documentation, this circuit for modulated infrared signals can be tuned to a certain frequency. The photodiode can be of any type.

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8-output phase shifter (CB8152E)
Found in a 1967 Electronic Design, this circuit changes the phase of a signal in 8 different ways, given...
Transistor long-term timer (CB9370E)
Found in Motorola documentation from the 90s, this circuit can be implemented with current...
5V x 10 A regulafot (CB9960E)
This configuration appears elsewhere on this site. We found it in a Motorola manual from the 70s....