unpleasant distortion on 18w lite - any idea?
Posted: Fri 12/01/23 11:23 am
Hi all,
a long time ago I built my first valve amp from the ampmaker.com schematics attached a long time ago. It was working fine back then, but then it remained unused for a couple of years. I have now fired it up again and it sounds terrible. I strummed a chord or 2 and recorded for reference. This was recorded with the volume at around 11 o'clock and the nasty distortion gets worse at higher volumes. I checked all the soldering, which is fine. Voltages look OK. I swapped all the valves. Nothing obviously wrong with the caps. So I am beginning to think it may be the OT, but before going ahead and investing in a replacement, I was wondering if anyone had heard something similar before and if they identified the issue/solution.
Thank you so much in advance
a long time ago I built my first valve amp from the ampmaker.com schematics attached a long time ago. It was working fine back then, but then it remained unused for a couple of years. I have now fired it up again and it sounds terrible. I strummed a chord or 2 and recorded for reference. This was recorded with the volume at around 11 o'clock and the nasty distortion gets worse at higher volumes. I checked all the soldering, which is fine. Voltages look OK. I swapped all the valves. Nothing obviously wrong with the caps. So I am beginning to think it may be the OT, but before going ahead and investing in a replacement, I was wondering if anyone had heard something similar before and if they identified the issue/solution.
Thank you so much in advance