A Hearing Aid is a very useful device for those who have a problem listening to low voices.
This Hearing Aid contains a small battery through which it is operated.
Here we designed this 1.5 V Hearing Aid circuit. The circuit is very small and compact in size which means you can easily carry it and use it.
What is a Hearing Aid?
A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss.
This device is specially designed for people who have problems listening to low voices.
This circuit can easily be operated by using the 1.5-volt battery. The components which we had used in this circuit are easily available.
Components needed:
1) BC557 and BC547 Transistor
2) 2x 10k, 200k, 330k, 3.3ohm Resistance
3) 10uf Capacitor
4) Condenser Mic
5) Earphone piece
