This powerful transmitter for the 27 MHz band was found in a Japanese publication from 1961. The circuit is powered by battery and has the details of the coils given next to the diagram.
We find this circuit in an 80's EDN. The circuit can be used with equivalent operational,...
This full-wave circuit was obtained in Motorola's 1974 unijunction transistors manual. The circuit...
This circuit was found in Motorola documentation from 1966. The lamps are according to power and...