UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Looking for help please with 1964 Trio W-41 stereo valve amp

TimMills · 24th Nov 2017, 4:20 pm

Hello good people.

My euphoria on resurrecting an old Trio W-41 valve amp, with your help, has been short lived I'm afraid.
I just switched it back on having done a little further work and there was a pop and a spark from around the input transformer. The fuse is now blown and I suspect the transformer has shorted somehow...

Please can you advise me?
Are there some initial simple steps I can take to check it through?

Image attached

many thanks
Tim

EDIT:
I may have found the problem.... it seems captain clumsy here accidentally switched the voltage input switch whilst carrying it! I fed it 240v while the switch was over on 110v... If I get a new fuse will it be ok? Or have I most likely done more damage than meets the eye?

24th Nov 2017, 4:20 pm	#72
TimMills Retired Dormant Member Join Date: Nov 2017 Location: Norwich, Norfolk, UK. Posts: 46	Trio W-41 power supply (transformer) POP!! Hello good people. My euphoria on resurrecting an old Trio W-41 valve amp, with your help, has been short lived I'm afraid. I just switched it back on having done a little further work and there was a pop and a spark from around the input transformer. The fuse is now blown and I suspect the transformer has shorted somehow... Please can you advise me? Are there some initial simple steps I can take to check it through? Image attached many thanks Tim EDIT: I may have found the problem.... it seems captain clumsy here accidentally switched the voltage input switch whilst carrying it! I fed it 240v while the switch was over on 110v... If I get a new fuse will it be ok? Or have I most likely done more damage than meets the eye? Attached Thumbnails Last edited by TimMills; 24th Nov 2017 at 4:35 pm. Reason: may have found the issue