We found this circuit in a 1982 documentation. It uses a CA3140 or equivalent operational amplifier and does not require a symmetrical source. The output is 1 Vpp wide.
This circuit came out at a Wireless World in January 2000. The circuit can be easily assembled as it uses...
The Texas Instruments TPS797xx family of integrated circuits is designed to supply very...
This is the traditional audio preamp configuration with the National Semiconductor LM382. The...