Ampeg V4.com

Hi!
After 10 years of epic performance my VT22 has a problem.

The amp was playing great, new caps by fliptops.net, new tubes, new WGS 12" G12C/S speakers (great on this amp). Just perfect.

Now i turn the amp on and it happens one of the following things:

1-Sometimes, ON, Standby, and all the power comes down in the building.

2-Sometimes, ON, Standby, i play for a couple minutes and all the power comes down in the building.

3-Sometimes, i use another wall plug, ON, Standby, i play for sometime and all the power comes down in the building.

4-I took it to different places and it happens the same thing.

5-Where i rehearse it happens the same thing, but because it is on a farm, the are different mains boards, i tried on a very powerful one that runs water motors... and nothing happened.

6-Tried new tubes nothing changed, checked the power cord and plug and nothing is wrong there.

7-Opened the amp and there isn't nothing looking wrong. I was expecting some some visible short to ground somewhere, but nothing visible there.

8-Took it to my amp tech, is just a friend that repairs PA material and studio gear and hates all things guitar. The amp worked OK there! He says is mains power has nothing special, i believe it, is just a garage.

9-Back home and is the same... tried another cabinet god knows why! but is the same.

Help!

Any idea what is going on?

Last edited by VT22 (2016-01-27 05:22:22)