This is the traditional audio preamp configuration with the National Semiconductor LM382. The circuit has good gain and can be used with magnetic pickups or from signals from an auxiliary input.
The sensor of this circuit is a 2N3055 transistor from which the housing cover has been removed to...
The figure shows how to generate a 60 Hz clock signal for TTL circuits. The circuit is from Radio...
The circuit shown in the figure can generate signals of good intensity up to a frequency of 30...