This 1 MHz oscillator was found in an Electronics World of 1969. The circuit uses a general-purpose FET and the output circuit must be resonant at the generated frequency.
This circuit came out in an American magazine that no longer exists. It's the Electronic...
This circuit originally came out in a Budget Electronics from 1981. The American magazine no...
This is the traditional audio preamp configuration with the National Semiconductor LM382. The...