Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Well after looking for parts I located the TDA2822 CHIP so decided to build the circuit in post#22
I ordered two different microphones
https://www.taydaelectronics.com/dynamic-receiver-150-ohm-60mv.html
https://www.taydaelectronics.com/condenser-microphone-1-5k-ohm-1-5v.html
hopefully either...
not sure what is going on with link?
I bookmarked the page.
file:///C:/Users/dougb/Downloads/TDA2822M%20_%20D2822A%20_%20KA2209%20DIY%20Guide%20-%20Simple%20low%20power%20stereo%20amplifier.html
this will explain post#15 questions
file:///C:/Users/dougb/Downloads/TDA2822M%20_%20D2822A%20_%20KA2209%20DIY%20Guide%20-%20Simple%20low%20power%20stereo%20amplifier.html
GOING TO LOOK AT https://www.digikey.com/en/resources/dkred
here is a schematic using the TDA 2822D013TR
THESE ARE AVAILABLE FROM MOUSER ETC
Need some advice on the input (microphone impedance and head phone )
I just ordered some TDA2822 assembled boards to see just how well they work.
I may need to adjust for the headphone impedance.
3 assembled boards for $10
My plan was to have 2 separate outputs. going to experiment with one first. If it works as desired then just put two of same on one board. The TDA2822 sounds promising. thanks
I am looking at hand wiring since pcb are to expensive.
I ordered the Velleman kit but looking at circuit using the LM386.
My goal, due to bad hearing, is to construct a headphone amplifier that does not use blue tooth.
Has capabilities of 2 persons.
post#1 has schematic of amp using the lm386
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