Strange Amplifier problem.

[jambourgie]

Hi there,

I've been having an intermittent problem with my amplifier. It sometimes cuts out on the left side. The strange thing is, If I give the volume a good quick boost, it comes back on for a while. Almost like the high volume forces its way through.

Any ideas? I'm not a complete stranger to the soldering iron

Thanks

[DSA.audio]

it's possible that some contacts or switches are dirty...