This PUT oscillator circuit has a frequency of 1 Hz. We find it in a General Electric documentation from the 80's. A recommended application is on flashers.
This non-inverting AC amplifier was found on a Popular Electronics. The setting applies to any...
Based on a CA3059 zero-cross switch, this circuit was found in the July 1995 Electronics Now...
This circuit was found in an article in Radio Electronics magazine. The issue is from July 1992...