Sawtooth generator (CB21338E)

This op amp circuit is based on a 555 IC and two common op amps. Transistors are general purpose.

Amplified megaphone (CB23703E)
This is an improvement on the previous circuit with a preamplification stage. The circuit is from...
Instrumentation Amplifier (CB782E)
This circuit was found in a Texas Instruments handbook about operational amplifier. It has a very...
1000 V pulses (CB6930E)
This circuit was found in an American publication from 1965. The circuit uses components from that...