27 MHz Oscillator (CB24983E)

This tunnel diode oscillator was found in July 1986, Radio Electronics magazine. Note the low supply voltage.

741 Temperature to Voltage Converter (CB19104E)
This circuit that has excellent linearity using an NTC as a sensor was found in a European...
TTL Crystal oscillator (CB9654E)
This circuit can generate signals from 100 kHz to 50 MHz depending on the crystal and the...
Sequential Control (CB6553E)
This circuit is from 1970 documentation. The SCRs are types of the era that can be replaced with 106...