So many people have contacted me with mechanical hum/whine with their MAV 2203X. So many. You can fix it by hitting the ends with a rubber mallet or hammer, but it’s still a noisy PT. Hums like a ….
As far as the 1959HW goes I had two here, one pre MAV and one MAV and while the voltages are...
If it's stratchy like a Presence pot can be, it means you have DC on the pot which can be caused by a leaky coupling cap. You can check with a multimeter. Just saw @griff10672 said the same thing! (y)
If you’re comparing the sound of a mic right on a speaker, then sure they sound the same through your studio monitors. But they are not the same to play through. Not even close. A tube amp is an instrument, you play it.
There is a PayPal buy page for US supplied Marshall reissue loops at the new DIY website.
https://evolvediy.com/?page_id=4791
Shea picks up the order and send to you from Indiana, if you’re in the US.
Relentlessly running a 72 100w superlead dimed into it did it. Perhaps the owner had the vents covered a little and was restricting airflow. Who knows.
I've repaired a couple of PS100's, ended up communicating directly with Steve. Quick, detailed and of course he diagnosed the issue straight away making it super easy to complete the repair.