Cause for this distortion

[Leevi]

Any ideas what is causing this type of distortion?


https://www52.zippyshare.com/v/mOLYyAqv/file.html

The circuit is like deluxe reverb AB763.

/Leevi

[shooter]

I'm not a player, but it sound like strings hitting metal badly, same sound different guitar?

[Leevi]

sound like strings hitting metal badly

I have heard that before and I don't think it is caused by the strings.


I think it could have something to do with a microphonic tube.

I also got to know that the problem occurs randomly.





/Leevi

[pdf64]

It may be a bad connection.
Is this combo?
If so, try a separate speaker cab.
Whatever, use a sig gen to find and induce the problem.
Also chopsticking around whilst the amp is passing a constant tone.

[Leevi]

It may be a bad connection.

Yes, definitely

Is this combo?If so, try a separate speaker cab.Whatever, use a sig gen to find and induce the problem.Also chopsticking around whilst the amp is passing a constant tone.

It is a combo. Thanks for the troubleshooting methods.
I will certainly apply them when I get the combo to my workshop.


/Leevi