Found in an 1868 Mullard documentation this circuit has a dynamic range of 10 Hz to 25,000 Hz. Modern equivalent transistors can be used.
The voltage gain of the circuit shown in the figure is 10 times. This gain is given by the ratio...
This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz....
This long delay circuit was found in the July 1973 Radio Electronics magazine. The capacitor...