Found in an 1989 R-E Experimenters Handbook, this circuit produces several sound effects that can be modified. The signal must be applied to an external amplifier.
This transmitter has a few watts of output power, having been found in a 1997 documentation. L1...
This amplifier configuration for instrumentation with two operators was found in a circuit manual...
The operational used in this common configuration is a double 741. The circuit can be used to...