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.
1) BC557 and BC547 Transistor
2) 2x 10k, 200k, 330k, 3.3ohm Resistance
3) 10uf Capacitor
4) Condenser Mic
5) Earphone piece