Surge limiter (CB8376E)

Found in a 1965 Electronic Design, this circuit limits surges in a load when power is applied. The diodes and SCR must be according to the load.

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900 W Power Control (CB13901E)
This circuit is from the 1974 Motorola Unijunction Trigger Circuits for Gated Thyristor. The triac...
Divider by 2 or 3 (CB6824E)
Found in old American documentation, this circuit can divide the frequency of a signal by 2 or 3...
144 MHz Transceiver (CB23613E)
This transceiver is also low power, but this time, it can generate signals in the 144 MHz band. In the...