This transmitter for the 3.5 and 7 MHz ham radio was found in a 1950s Japan publication. No information was given on the coils and the power supply.
The presented circuit is suggested by Texas Instruments (www.ti.com) in its Application Report...
This circuit was found in an old American publication. It is valid for any operational. Formulas for...
This frequency corresponds to musical note C3. Frequency accuracy depends on the accuracy of the...