Low frequency clocks (CB9320E)

These circuits were obtained in an Electronics Now from the 90s. The integrated circuits are from that time and the power can be between 1.5 and 2 V.

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Shield 4011 (CB19289E)
This circuit causes an LED to flash at a frequency determined by capacitor C1. The circuit can be...
Neon flasher (CB9784E)
This flasher or neon signal powered by batteries was found in old documentation. The transformer must...
Digital Switch Mixer (CB4919E)
This circuit was obtained from an ancient American documentation, but appears elsewhere in this...