Using old germanium transistors like the CK722, this circuit has good gain. We found it in a publication from the 50s.
This simple 3-channel passive mixer can be used with low-intensity signal sources but requires...
The circuit shown is from the Motorola Linear Databook of 1990. In the example, the components are for the...
This circuit uses a feedback system that latches the relay when closed. The circuit uses an...