Joe Shaw Posted July 11, 2006 Share Posted July 11, 2006 I have a reissue Vox 15 (about 1995 made in England) that I believe has a bad power transformer. I replaced this transformer 6 years ago. The amp just died, no power, but no blown fuse either. This time it is blowing it's 500mA main fuse. I put a Fluke 87 in current mode and placed it in circuit. The amp works and sounds good. It draws 400mA on stand-by and 600 mA turned all the way up. However, it blows a 1.5 A fuse. I bought new output tubes and a new 5Y3 to no avail. It also blew a 1.5 A fuse with the 5Y3 out. I have the transformer here on the bench. I was hoping that you could give me an idea of how to test and make sure this bad before I buy another one. I have a Sencore Z meter and enter an erroneous value to get started. The primary told me it was 233 mH, but it says 5 rings and Bad. The secondaries ring bad as well. With an ohm meter I get 7ohms on the primary and .3 on the secondary. Please help. Link to comment Share on other sites More sharing options...
Big Red 67 Posted July 11, 2006 Share Posted July 11, 2006 I think you missed the "sticky" at the top. Copy to that so Myles will be more likely to see it. Last not least, HI! Big Red's Ride Blog Link to comment Share on other sites More sharing options...
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