N° of component 

Small Amplifier (CB991E)

This amplifier was found in an old publication of 1990. With the changes, it may still be assembled with more modern transistors. Power is a few tens of milliwatts and the sound quality is good serving for intercoms and small radios, headphones, multimedia boxes or as a good signal follower. The source must have excellent filtering and signal input cable must be shielded.






Circuit Bench