The figure shows a way to apply gain control to the LM3600 OTA. The circuit is from a Radio Electronics from July 1988.
This circuit allows modulating the signal generated by a crystal oscillator. The circuit is from...
This circuit is intended for charging 12 V Nicad batteries, which corresponds to 10 common...
This 12 or 13.8 V stabilized source is suitable for experimental FM transmitters that require...