This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can generate 20 to 100 MHz signals operating at the fifth harmonic of the crystal.
Found in a 1965 General Electric circuit manual, this circuit uses SCRs from that time. Modern...
This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can...
Found in a 1969 Ferranti documentation, this circuit uses only bipolar transistors from that time....