Source Follower (CB6153E)

This stage for JFETs was found in a 1965 US publication, but is valid for modern components.

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Simple 6 to 60 second timer 555 (CB25863E)
This circuit was found in the June 1995 Electroics Now magazine. The relay should be a sensitive type...
TTL Oscillator with the 7400 (CB518E)
Frequency in this oscillator is given by C1 and C2. The circuit produces square pulses that can...
Triggered 2 kHz Shield (CB4881E)
This circuit produces a 2 kHz tone on a standard piezoelectric transducer. The circuit can be used as...