This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The transistor admits equivalent as 2N2222 or BF494. The circuit is from an old American publication.
This circuit was obtained from an 80's documentation from General Electric. The circuit uses an...
This circuit, from a 1987 documentation, is for the CB3817E transmitter. Connected to the handset...
We found this circuit in the National Semiconductor FETDatabook of 1977. The signal has an...