We found this circuit in a magazine 73 from the 90's. It is a circuit indicated for radio-amateur transmitters with the frequencies determined by the sets of coils.
This circuit is indicated to operate from high impedance sources as piezoelectric transducers....
We found this circuit in a Motorola publication from the 70s. The circuit can be implemented with...
This double bench source has a fixed voltage output and an adjustable voltage output with current up...