Probs with Herbert at gig

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herbert001442

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Peter or anyone!

Had my herbie working fine on saturday practising. I then took it to a gig at night and when i set up i turned it on and the fuses inside blew.
I opened it out and changed them but it happened again. In Fact it happened 9 times!!!
I had to do the gig with a spare amp which worked fine.
I tried it at home yesterday and its working fine.
Any idea what can cause this??
The bass player had his amp plugged into my four way power - could that cause it and if so why did this not happen with my spare amp.
Also could the midi do this?? I run a Boss FC 50 midi footswitch powered by a boss power supply with a 5 pin midi cable. I have blew the fuses before when i plugged the midi lead in but nothing at a gig or to that extent.
Any advice would be great. Would there maybe something wrong with the amp and it needs to be looked at??
Please help!! :?
 
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herbert001442":99e11 said:
Peter or anyone!

Had my herbie working fine on saturday practising. I then took it to a gig at night and when i set up i turned it on and the fuses inside blew.
I opened it out and changed them but it happened again. In Fact it happened 9 times!!!
I had to do the gig with a spare amp which worked fine.
I tried it at home yesterday and its working fine.
Any idea what can cause this??
The bass player had his amp plugged into my four way power - could that cause it and if so why did this not happen with my spare amp.
Also could the midi do this?? I run a Boss FC 50 midi footswitch powered by a boss power supply with a 5 pin midi cable. I have blew the fuses before when i plugged the midi lead in but nothing at a gig or to that extent.
Any advice would be great. Would there maybe something wrong with the amp and it needs to be looked at??
Please help!! :?
Click to expand...

Check the sum of ambers of your amp and your bass player's amp. Then check how many ambers the 4 way power can tolerate. Honestly I don't think the amp has a problem.
 
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Ampaddict":f6210 said:
Don't the fuses go if the tubes are bad? :?
Click to expand...

Yes but I wanted to make sure that the 4 way power was not overloaded. A faulty tube had caused me such issues in the past.
 
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Ampaddict":6575e said:
Don't the fuses go if the tubes are bad? :?
Click to expand...

it wasnt the tube fuses that went, It was the 3 fuses on the circuit boards
 
Peter
can you lend any advice on this??

I have checked the valves and everything i can
Tried plugging the amp in different places and it still blows fuses.
Its now blown 28 fuses
i am plugging the amp in to different 4 x12's and tried different leads but still the same problems
 
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