UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

thejazzageuk · 7th Feb 2017, 10:28 pm

That's good news.

Grounding the input does not noticeably reduce the hum, but I can look into that later (the link to the cartridge is long and not shielded)

How do you advise I proceed with replacing the capacitors- do we mean C45 and C46 plus the ones I listed earlier?

C39 -0.01 paper cap- coupling for V7. REPLACE?
C40/41 caps for Tone control. LEAVE?
C37 0.5 signal valve screen voltage cap. REPLACE?
C35 signal coupling cap 0.5 REPLACE?
C45 abd C46 coupling caps 0.25 for V9 and V10. REPLACE?
C51/52 mains filter caps. REPLACE?

Do I check first or just replace- and any particular order? I guess I should do them one by one and do a power up with lamp limiter after each one to check it is still working?

7th Feb 2017, 10:28 pm	#130
thejazzageuk Pentode Join Date: Feb 2014 Location: Carmarthen, Wales, UK. Posts: 238	Re: Restore a Beau Decca That's good news. Grounding the input does not noticeably reduce the hum, but I can look into that later (the link to the cartridge is long and not shielded) How do you advise I proceed with replacing the capacitors- do we mean C45 and C46 plus the ones I listed earlier? C39 -0.01 paper cap- coupling for V7. REPLACE? C40/41 caps for Tone control. LEAVE? C37 0.5 signal valve screen voltage cap. REPLACE? C35 signal coupling cap 0.5 REPLACE? C45 abd C46 coupling caps 0.25 for V9 and V10. REPLACE? C51/52 mains filter caps. REPLACE? Do I check first or just replace- and any particular order? I guess I should do them one by one and do a power up with lamp limiter after each one to check it is still working?