I need help for my LM386 based amp

[fisshy]

I have made several smokey amps and I though they were great, but I wanted more gain.
So, I looked around on internet and I thought I could use the input part of Krank Distortus Maximus, which I
assumed that it is a typical booster. I combined the smokey amp and the booster and tried.
The sound came out, but it was very, very low volume. This is the schematic I made

The problem is, that I do not know if the mistake is from the schematic itself or how I built them.
Is the schematic working correctly?

[CynicalMan]

The Distortus Maximus input stage is a treble booster, not a full range booster. You can make it a full range booster by changing the 4n7 input cap to 0.1u.

You should probably have a 0.1uF capacitor going from pin 7 of the 386 to ground.

When using the LM386 with higher gains it is necessary to bypass
the unused input, preventing degradation of gain and
possible instabilities. This is done with a 0.1 μF capacitor or
a short to ground depending on the dc source resistance on
the driven input.

Pin 7 is the bypass point.

Also, to ensure stability, having a 4n7 capacitor and a 10Ω resistor in series going from pin 5 to ground is often necessary when using a speaker.

I don't know if fixing any of these will fix your problem, but they probably should be changed.

[fisshy]

Thanks for the reply.
Im gonna put the 0.1uf cap in a minute.
Others...I dont have them right now, so for tmr.
I heard about the 10ohms and caps, but one in Ruby has 47n instead 4n7. It can be any of it?
I have one more question that might sound very stupid for some people, but I want to learn!
If I put the output of Krank Distortus Maximus in to a speaker, will it make a sound?
If now, why doesnt it or why does it?

[fisshy]

I tried the 0.1uf cap...No change.
The weird thing is that, there is no sound until I bring my volume pot full, which I placed right after the output.
Also, the sound is clean, and not distorted.
When I change the IC to another Lm386 which seems to have more power than the one before, it doesnt even
give a sound but a oscillation.

[fisshy]

Now I tried the 10ohms and 47n caps at the end...but no change either.
arghh, I hope I was smart enough to analyze the circuit and know everything...

[Brymus]

Try connecting pins 2 and  4 to ground.
Also try using pin 2 for input and tying pins 3 and 4 to ground.
One way is inverted input the other is non-inverted.
It should work then.

[fisshy]

Try connecting pins 2 and  4 to ground.
Also try using pin 2 for input and tying pins 3 and 4 to ground.
One way is inverted input the other is non-inverted.
It should work then.

Thanks Brymus, but pins 2 and 4 are actually grounded. Sorry for bad schematic. Well, and it is deleted right now so im gonna upload it again later.
I've heard about using pin 2 as an input. Im gonna try that later...Im at school now :p

[fisshy]

I tried the input on pin 2, the result was that when there is no sound still. When I bring the volume to max, there is an oscillation.
My guess is that the problem is in the schematic itself? If it is, how can I revise it?

[anchovie]

My guess is that the problem is in the schematic itself?

...or the build.

I'd suggest isolating the two parts - build a booster that works, and amp that works and stick the two together.

[fisshy]

Thanks for the suggestion.
I have actually made two of them separately and connected with a cable.
It worked fine.
Tomorrow, I am going to try putting them together... hope that works...