The following schematic shows the Simple taken from bowdenshobbycircuits.info. This Simple is basically a crystal radio with an audio amplifier. It uses germanium diode (1N34A type). The circuit draws about 10 mA from a 9 volt source.

Simple Op-Amp Radio Circuit Diagram

Get more information about Simple here.



Related Post

Constant-Wattage Autotransformer (CWA) HID Ballast Circuit Diagram
Clarion NK1U Mind Wire Harness and Cable Connection
Transformer-Coupled SSR Circuit Diagram
Integrator Op Amp Amplifier Circuit Diagram
2004 LLY 6.6L GM Trucks Duramax Fast Idle Wiring Diagram