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.
This circuit came out in a publication called Electronics Handbook of 1993. Q1 can be a 2N2222 or even...
This simple circuit allows the monitoring of both audio and RF signals. With the switch in one...
This Testa o Croce (name in Italian) was obtained from an Italian magazine in 1994. The circuit can...