Found in an old American documentation this FM modulator makes use of a varactor diode. The circuit can be easily implemented given the small number of components used.
This traditional complementary circuit produces three different ones, adjusted in the...
Needing a higher output current in a voltage doubler, we can connect inverters in parallel, as...
Found in documentation from the 1980s, this circuit can generate signals between 6 and 8 MHz. The...