Third Order Low Pass Filter (CB25264E)

This circuit was found in the December 1990 issue of Radio Electronics magazine. It was used in a home theater sound system.

10 MHz Crystal Oscillator (CB6143E)
This Siliconix circuit was found in a 1980s documentation. The coil consists of 18 turns of 22...
Cascading the LM12 (CB14393E)
With the configuration shown, the output capacity of the LM12 can be doubled, which is 4 A. The...
Polarity Converter (CB5289E)
This circuit was found in a 1976 NASA manual, making use of components of the time. The transistor...