SCR Flasher (CB23953E)

We found this traditional flasher configuration in a June 1969 Radio Electronics magazine. SCRs are controlled by the power of the lamp.

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Voltage Controlled Servo (CB18149E)
This circuit was found in a 2006 documentation. Its purpose is to control a servo system in which...
Difference Amplifier OP37 (CB19724E)
Raytheon's used operational amplifier is rare today, but the configuration can be adapted to use...
Rain Alarm (CB15108E)
This alarm, from a 1996 magazine, can be fitted with two BC548s in the original configuration...