Monostable 4047 (CB25123E)

This re-triggerable circuit was found in the April 1988 Radio Electronics magazine. Timings are given by R1 and C1.

Mixer LM3900 (CB13690E)
This 1975 documentation circuit must use a 6 to 9 V symmetrical source and the signal cables must...
Digital Gain Control for Operational (CB15010E)
With the circuit shown in the figure it is possible to digitally control the gain of an...
Varicap FM Receiver (CB17370E)
The audio amplifier integrated circuit used in this 1990 project is not very common today....