This device will let you hear everything! DIY hearing aid.

JLCPCB for $2 PCBs (48 hours build time):
Download PCB
Hearing aid from China

Transistors 2N5551

My microscope

Another microscopes


Make money on Aliexpress
Cashback 8.5%

Russian version


TheViking says:

can i use with project for the pc mic ???

Uiuu Tajikistan त says:

3.7 v se 240v saplai Kaise kare

gareth ronaldo says:

Good job dude

Edas Pacauskis says:


wolvenar says:

how does this get around unwanted noises?

Nerdygirl says:

This circuit, hooked up to a transmitter, is an excellent bugging device.

UFOhunter says:

You have a good heart.

Yes says:

Wonderful video

zumbazumba1 says:

Hello guys ,i am trying to make mot spot welder.Does anyone know how to make it adjustable so i can control the current of a secondary coil(the buissnes end where electrodes are)?

Konain Haider says:

This circuit is for the deaf people.

Muhammad Sheikh says:

where is gerber file ?

Mitica Badila says:

Excellent work!

PASSTRAN eci_twi says:


electro magic says:

hi nice video but are you a girl

Darwin Mendoza says:

Love the circuit. I’m trying to learn how to make circuits, does anyone recomend any books or websites?

SKORPION 15 says:

Your projects are very interesting, I subscribed :)

Shoumik Ahmed says:

Make video on automatic night light

vismakan says:

What capacity is c1

Eddy Yu says:

Are you really a woman ? You so smart !

Ritcheboy Bartolabac says:

Someone who make this?
It really work?

Henry Fazbear TNT says:


Write a comment


Human Verification: In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Do you like our videos?
Do you want to see more like that?

Please click below to support us on Facebook!

Send this to a friend

▷ Other ReviewsVehicles   Show Cars   Motorbikes   Scooters   Bicycles   Rims & Tires   Luxury BoatsFashion   Sunglasses   Luxury Watches   Luxury Purses   Jeans Wear   High Heels   Kinis Swimwear   Perfumes   Jewellery   Cosmetics   Shaving Helpers   Fashion Hats   Modeling TipsFooding   Chef Club   Fooding Helpers   Coktails & LiquorsSports   Sport Shoes   Fitness & Detox   Golf Gear   Racquets   Hiking & Trek Gear   Diving Equipment   Ski Gear   Snowboards   Surf Boards   Rollers & SkatesEntertainment   DIY Guides   Zik Instruments   Published Books   Music Albums   Cine Movies   Trading Helpers   Make Money   Fishing Equipment   Paintball Supplies   Trading Card Games   Telescopes   Knives   Vapes   GameplaysHigh Tech   Flat Screens   Tech Devices   Camera Lenses   Audio HiFi   Printers   USB Devices   PC Hardware   Network Gear   Cloud Servers   Software Helpers   Programmer Helpers   Mobile Apps   Hearing AidsHome   Home Furniture   Home Appliances   Tools Workshop   Beddings   Floor Layings   Barbecues   Aquarium Gear   Safe Boxes   Office Supplies   Security Locks   Cleaning ProductsKids   Baby Strollers   Child Car Seats   Remote ControlledTravel   Luggages & Bags   Airlines Seats   Hotel Rooms   Fun Trips   Cruise Ships   Mexico Tours