Lesson learned- don’t worry be happy

[Jamme1961]

First if you’re reading this Happy Thanksgiving! I was talk to Mike from Mesa- I sent pictures of my MKIV - I told the noises my amp makes unt it warms up - crackle pop thump for the first minute or two - then all good? New filter caps - new tubes - sockets cleaned. Fuchs amps - added a bias pot and looked at my amp two times — same noises crazy. I was about to send it to Mike but —/

Hi jerry,
I will suggest that you do not bother to send it to us. If it works fine after it warms, just trust it. Looks to me liken they got rather messy with the glue... Malkes it a pain to work on too.
I have had some that do this on warm up, and not just MK4, but gotten no where chasing it. We could spend hours and not find what is causing it.

Just enjoy that it works.

Thanks, mb