Mark IIA hum, need Philly area tech recommendation please!

[JuanK]

My Mark IIA, which has been re-capped and re-tubed within the past year, now has a loud 60 cycle hum. Worked fine on Friday, spent the night in the car (down to 40 degrees) and then when I turned it on on Saturday, pop when switching standby to on, and hum.

I pulled the tubes sequencially, including PI, checked the input jack, etc. and hum persists. Visually looks ok, but I'm no tech! So...

Need a tech in the Philly area. Both Jim Walton and Rusty Gray (Musicians Electronic Services) seem to get good recommendations, but I've never needed Boogie service in the past so I'd appreciate your thoughts, thanks!

 

[Rick Mark2A]

Not philly area, but if north jersey isn't too far, you could go to Dave's Sound in Whippany, NJ. I had my Mark IIa in earlier this year and he did great work.