Thierymin pitch only theremin giving nothing but static an high pitched noises.

Haha, I understand. Well, I shall get the 100uF cap for the + input, and then post if it makes anything better. I have removed the 10uF and just connected the 2 pins straight. Thank you for your advice

386 Datasheet

Leave pin 1 & 8 open, disconnected from everything, that idea makes an engineer cringe.

Okay done thanks. However I'm only going to be able to continue with this on Monday when I get my 100uF cap. Because of the previously stated problem.

If this is battery powered try it without the 10uf & 100uf capacitors, I bet it works. In a theremin a little distortion can be a good thing.

Christopher

Of the handful of IC audio amplifiers I've tried, the LM386 is the most stable, probably because it is such a low wattage device and the default gain is rather moderate.  As a speaker amplifier it's fairly underpowered, as a headphone amplifier it's rather overpowered and noisy, so IMO it's an IC looking for a solution.

Unfortunately i do not have a 9V battery with me. I bought a higher rated 6V regulator which i am powering of an external 12V DC power supply i followed Theirrys schematics exactly interms of the regulator. Just used a bigger one.

Thaddeus said: i am powering of an external 12V DC power supply

Switching Regulated power supplies can create their own issues do to noise in sensitive circuits. Also using the larger regulator if you mean by size you might want to add more load across it by placing a 330 resistor from +V and ground.

I would have begun this project only using batteries.

Just thoughts to realize...

Yes, thank you. I have lot's to learn. Tomorrow morning I shall go and buy some 9V batteries. (It's 23:14 here).

I mean bigger as in how many A it can supply. It's still 6V

I mean bigger as in how many A it can supply. It's still 6V