Siren 4046 (CB25764E)

This circuit with the PLL4046 was found in the October 1994 Electronics Now magazine. The transistor is low power, and the volume obtained is small.

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Nixie 10 Minute Timer with Nixier Tube (CB1267E)
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Programmable Gate (CB5322E)
This interesting 80's logic circuit consists of a gate that can be programmed according to the...
Fast TTL Probe (CB1462E )
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