- LM386 audio gain module
- 200 gain of circuit design
- Onboard Terminal Block
- Onboard 10K variable resistor, the volume can be adjusted
- Onboard power indicator
- The main pin chip has been drawn, the input audio signal can be directly
- The working voltage: 5 ~ 12V
- The board size of 41 (mm) x13 (mm)
Reiko Jeanlouis –
Olevia Lauder –
I have used one of the two modules I ordered and it works very well and they come well packaged.
Rudolf Kirsch –
Very good item, fair price, and fast shipping.
Everything is great THANK YOU!
Cassey Odle –
The audio module arrived promptly and in excellent condition. Works perfectly, meeting all my expectations. Very happy with the purchase.
Shanda Gatling –
Super goods and fast delivery 5 stars
Maximilien Chopin –
Always handy to have in stock.
Maariya Kramer –
Quick Envoi
Test suivra
Super
Goods
Demarcus Mcmullen –
I bought this because the music box in a children tricycle, was randomly rebooting when the registered MP3 music on the added USB storage key is registered with a high sound level.
I never noticed that until I used this USB key storage. Of course this key consume a certain amount of power coming from the 5V regulator embeded on the music box electronic board.
And when this voltage regulator reach its limit current , the protection shut off the out put power, and the micro-controller on board is rebooted .
So I used this power amplifier, to limit the output current on speaker output on the music box.
Of course because the gain of the amplifier is very high, you ave to attenuate the signal coming from the standard speaker output in the musicbox. A ratio 1/4 is the minimum. 1/8; or 1/16 should be best, otherwise, it’s impossible to adjust the gain easily on the amplifier, with the potentiometer
Tandy Hoyte –
as described
Coleen Dragon –
Very good product
Alisa Watts –
Anacleto Adornetto –
Adella Tarry –
Gage Edmonds –
Takako Ream –
Iside Casaletto –
Klemens Totleben –
Emma Carra –
Major Woodrum –
Lisabeth Brennen –
Rosalie Robertson –
Emmanuel Gillie –
Enrique Lutz –
Yuvraj Wolf –
I have used one of the two modules I ordered and it works very well and they come well packaged.
Niam Mullins –
Very good item, fair price, and fast shipping.
Everything is great THANK YOU!
Winston Hyde –
The audio module arrived promptly and in excellent condition. Works perfectly, meeting all my expectations. Very happy with the purchase.
Gayla Tincher –
Super goods and fast delivery 5 stars
Liberatore Accordino –
Always handy to have in stock.
Durante Sciara –
as described
Eleri Barnes –
Quick Envoi
Test suivra
Super
Goods
Renesmae Knapp –
I bought this because the music box in a children tricycle, was randomly rebooting when the registered MP3 music on the added USB storage key is registered with a high sound level.
I never noticed that until I used this USB key storage. Of course this key consume a certain amount of power coming from the 5V regulator embeded on the music box electronic board.
And when this voltage regulator reach its limit current , the protection shut off the out put power, and the micro-controller on board is rebooted .
So I used this power amplifier, to limit the output current on speaker output on the music box.
Of course because the gain of the amplifier is very high, you ave to attenuate the signal coming from the standard speaker output in the musicbox. A ratio 1/4 is the minimum. 1/8; or 1/16 should be best, otherwise, it’s impossible to adjust the gain easily on the amplifier, with the potentiometer
Benoît Cortot –
Very good product