Passive Mixer (CB824E)

This mixer uses only four passive component and can be used with high impedance sources. The input and output cables must be shielded to avoid hum.

Bistable Using Relay and SCR (CB541E)
This set-rest relay uses two SCR and two switches to control a DC relay. The circuit can be used...
Negative Line Current Monitor (CB5244E)
This circuit monitors the current in the negative line. The circuit is from a 2005 Linear...
10 Minute Timer (CB1501E )
The circuit shown in the figure was found in a 1974 publication. The field effect transistor may...