Conventional Astable (CB24839E)

This common circuit is from September 1984 Radio Electronics. The transistors are general purpose, and the frequency is given by the capacitors.

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CMOS Mixer (CB922E)
This digital mixer uses CMOS integrated circuits. The circuit was published by us in a magazine...
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This precision circuit can provide timings from 0.2 milliseconds to 3 minutes accurately. The...
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