More ideas from Electroschematics
This amplifier circuit uses IC and output transformer as an additional amplifier in the output. You can use the transformer output transformer-old has not used but still in good condition, you can use it in this circuit

This amplifier circuit uses IC and output transformer as an additional amplifier in the output. You can use the transformer output transformer-old has not used but still in good condition, you can use it in this circuit

Discover all about electronics circuit schematic you can find here its very large databse of electric circuit.

Frequency to Voltage Converter Circuit