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Title: Power Transformer took a dump? Post by: nickm57 on December 18, 2009, 01:25:36 PM I built the amp about 18 months ago.
Now this amp has over 300 shows to it's credit and my main giging amp. It was used on a Major Australian musical for 8 shows a week for 3 months. Tonight power up----> main power fuse is blown????another fuse same. no valves same..... Had to use another amp for the show. >:( Just got home from the show, had a look does not smell good. I'll check but I'm tired and not willing to go further after a show. :'( Anyone experience problems with the PT? I know not many other users will have put that much mileage on an amp. But my 1964 Fender has never failed in this area (that is 45 years old). Title: Re: Power Transformer took a dump? Post by: JD0x0 on December 18, 2009, 05:26:57 PM Pull the amp out of the cab and take a look at all the components. Make sure you didnt burn a cap or resistor up. If everything checks out i would probably suspect the PT. Which in that case contact Nik, he will probably offer to ship a new PT over to you.
I havent heard of these amps blowing transformers that often so i would qualify 18 months for transformer life is too short and it probably had a defect Title: Re: Power Transformer took a dump? Post by: mcinku on December 18, 2009, 09:02:25 PM Well, my friends OTS had the same symptoms and it was a PT issue. In his case 345-0-345 secondary was fried.
I informed Nik and he send me a new one, which I replaced. BTW the current PTs are bigger than older ones, so I assume the new one will definitely last forever. My OTS still has the original PT and it works no problem. I guess sometimes some trannies just fail. BTW here's the picture I took when I took out the old PT. Guess which one is the new one. ;) Title: Re: Power Transformer took a dump? Post by: casken on December 28, 2009, 11:43:19 PM I had one go bad about a week or two after I got mine (complete build from Ceriatone). They sent a new one out and no problems since.
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