This circuit was suggested by General Electric in a 1965 documentation. The circuit can be implemented with equivalent SCR.
This amplifier has a gain of 45 dB (100 times) operating with audio signals from 50 Hz to 25 kHz....
This circuit can be controlled by an LDR causing an LED to flash at a frequency given by C2. The...
The basic idea of the circuit shown in the figure is to increase the brightness of an ordinary...