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This variable frequency oscillator was found in an old American documentation. Transistors allow more modern equivalents and coil data are found next to the diagram for several frequency bands.
This TTL oscillator can be used as clock in many applications. The output signal is square and the...
This circuit consists in a capacitor bridge for capacitance measurements. The circuit can be...
The frequency of this oscillator can be set in a range from 5000 to 1. We found it in an old...