Found in a 1967 EEE, this circuit oscillates at 20 MHz according to the values of the given components. The FET can be of general use. The coil has only indicated the number of turns.
This musical doorbell was found in a Popular Electronics from the 90s. The U4 melody generator...
This circuit was found in a 2005 Linear Technology application manual. The circuit is based on the...
This oscillator produces a signal with a central frequency in 1 MHz. This frequency can be...