Dial Tone Generator (CB5984E)

This circuit is from an old documentation making use of a 3,579,645 MHz analog color television crystal. The audio amplifier supports the equivalent.

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Micro Power LED (CB15111E)
This circuit causes an LED to flash at a frequency determined by the capacitor. The circuit has an...
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This low power two-phase motor control was obtained in a 1989 publication. The circuit is for...
Bipolar and Unijunction Multivibrator (CB18908E)
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