4066 Latching Touch Switch (CB25241E)

This circuit was found in the November 1989 Radio Electronics magazine. Power supply depends on the application.

Equalizing Amplifier NAB (CB4946E)
Suitable for recovering tape recorded media from a common tape player mechanism, this circuit is...
Preamplifier Using JFET (MSB012E)
This circuit is indicated to operation with piezoeletric transdicers or other with high impedance...
Micro High Voltage Generator (CB25720E)
Of course, the current is extremely small, but a voltage of 300 V can be obtained from 9 V of a...