Thomas Vox Berkeley III

[Jake]

Hi, new member here.
I picked up a Berkeley III head, cabinet, trolley and foot switch for next to nothing. It was a mess inside and out. I changed out electrolytics, filter caps, a few resistors, cleaned the pots, and got it sounding surprisingly good. Nice reverb and trem. MRB not doing much. Added 3 prong grounded AC cable, removed the line switch and accessory outlet wiring. Speakers are non original Eminence square magnet ceramics circa 1973. Cleaned the cabinets, trolley. I also have an early silver panel tube Cambridge Reverb amp that's real nice too. The Berkeley was a fun and patient refurb for me. Liking the amp. I'll post a picture soon. 

[Den.]

I once owned that same amp. I found that the footswitch switch that activated the MRB was a momentary switch. I later swapped in a latching switch.You cannot view this attachment.

[J M Fahey]

You have just been answered, no need to repeat your question multiple times.
Do as I suggest and it should work.

[Jake]

My MRB has no effect. Probably a bad LC 1 Henry in the circuit. I like how the amp sounds though.

[Jake]

  Well, I think I got it! Here's a pic.