Non Inverting Amplifier (CB6437E)

This non-inverting AC amplifier was found on a Popular Electronics. The setting applies to any operational amplifier.

Band Notch Filter 741 (CB13325E)
We found this configuration of band rejector filter or band rejector with operational 741 in a...
CMOS Oscillator (CB24273E)
This oscillator can use any CMOS inverter. The circuit is crystal controlled and was found in the...
Gain Control with Limiter (CB6322E)
This circuit was found in a 1967 US documentation. It shows how to build a gain control by digital...