Help needed in Bloomington IN

razz · 7th April 2006, 03:41 AM

Hi I have a problem with an integrated p/p tube amp I recently purchased. I was led to believe from the seller and all literature/markings, etc that it was a 220v amp, yes a chinese one. When I hooked it up to 110v it worked but the tubes were dimly lit imo and the sound though nice sounded a little thin, so I bought a stup up converter and hooked it up. Well the tubes lit up allright for a few seconds then the fuse in the 800w converter blew (amp rated 250w) and a smell of overheated components eminated from the amp. Now only the right channel works, I tried switching the tubes and still only the right channel works. Seems this is a 110v unit afterall. I am over my head here and am seeking help from someone local who can troubleshoot this amp, I do have a schematic. Thank you all, farneyblakeley@lycos.com

razz · 7th May 2006, 03:18 AM

----------bump---------
Another try
This is a dual power supply amp and I'm afraid I've fried one of the transformers, really miss that sound, the first all tube sound I'd ever heard, thanks all

7th April 2006, 03:41 AM	#1
razz diyAudio Member Join Date: Apr 2006 Location: US	Help needed in Bloomington IN Hi I have a problem with an integrated p/p tube amp I recently purchased. I was led to believe from the seller and all literature/markings, etc that it was a 220v amp, yes a chinese one. When I hooked it up to 110v it worked but the tubes were dimly lit imo and the sound though nice sounded a little thin, so I bought a stup up converter and hooked it up. Well the tubes lit up allright for a few seconds then the fuse in the 800w converter blew (amp rated 250w) and a smell of overheated components eminated from the amp. Now only the right channel works, I tried switching the tubes and still only the right channel works. Seems this is a 110v unit afterall. I am over my head here and am seeking help from someone local who can troubleshoot this amp, I do have a schematic. Thank you all, farneyblakeley@lycos.com

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7th May 2006, 03:18 AM	#2
razz diyAudio Member Join Date: Apr 2006 Location: US	----------bump--------- Another try This is a dual power supply amp and I'm afraid I've fried one of the transformers, really miss that sound, the first all tube sound I'd ever heard, thanks all