UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - How much hum is normal? and valve change DAC90A

kalee20 · 14th May 2009, 6:03 pm

Definitely leakage within the UL41 then. But, do the pin 4 mod and prolong the useful life of your new UL41.

Is there any chance of having the old UL41, if you've got no further use for it? I'll pay p & p of course!

14th May 2009, 6:03 pm	#18
kalee20 Dekatron Join Date: Feb 2007 Location: Lynton, N. Devon, UK. Posts: 7,081	Re: How much hum is normal? and valve change DAC90A Definitely leakage within the UL41 then. But, do the pin 4 mod and prolong the useful life of your new UL41. Is there any chance of having the old UL41, if you've got no further use for it? I'll pay p & p of course!