This circuit operates with frequencies from 0.5 to 400 MHz. We find it in a 90’s NASA documentation. The transistors are from that time.
Found in a 90s Radio Electronics this circuit requires precision resistors in the dividing...
This circuit of very high input resistance was found in a Radio Shack documentation from 1977. The...
A quartz crystal-controlled oscillator, capable of operating up to approximately 1 MHz, can be...