We found this circuit in an American publication from the 90s. It generates pulses that can be modulated in amplitude. The supply can be done by voltages from 5 to 12 V and the frequency depends on C1 and C2.
This circuit is from the National Semiconductor's Linear Applications Handbook of 1994. The...
This RF signal meter has a switch position that allows calibration and comparison of low intensity...
T We found this circuit in the 1960 Mullard transistor application manual. The circuit can be...