Restuffing Dual Electrolytic Can Capacitor - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

Refugee · 16th Oct 2020, 1:05 pm

That radio has got electric teeth with those HT terminals top side.

telstar · 16th Oct 2020, 1:22 pm

Quote:

Originally Posted by DonaldStott

Thanks to UB and Mike for your responses - I was becoming a bit concerned about the lack of feedback.

@Uncle Bulgaria - I had contemplated using the technique you suggest but felt that my dowel approach gave me greater control and didn't leave me with an annoying hole in the middle. At all times I"m eager to stress that I'm not putting forward the methods I used as 'best practice' in any way! I'm simply describing the approach I took to the challenges of restuffing a dual electrolytic can capacitor.

@telstar - I've now replaced the smoothing and reservoir capacitors in several valve radios and 1960's record turntables. On most occasions it's been possible to connect the replacements to a new tag strip mounted under the chassis and out of sight - often leaving the original can in place. This time round I thought I'd have a go at restuffing as I had a spare can from another set and, partly, to see see how difficult it could be? In addition the Bush DAC10 has the large tuning unit under the chassis so not much space there!

The 450V replacement caps I used were Rubycon Electrolytic Capacitor, Miniatures from Farnell as recommended by Forum member David G4EBT. Three of these will fit inside a standard Bush can although only two were required for the current restuffing - see the next Stage coming up soon!

Hi Good to hear that you have some results. I have another similar project with the Alba 461 radio (3 capacitors in one can, where only the reservoir capacitor does not measure leaky)
Cheers
Mike

DonaldStott · 16th Oct 2020, 3:30 pm

Quote:

Originally Posted by Refugee

That radio has got electric teeth with those HT terminals top side.

Agreed, but that's the original design for the Bush DAC10 - HT terminals top side!

Quote:

Originally Posted by telstar

Hi Good to hear that you have some results. I have another similar project with the Alba 461 radio (3 capacitors in one can, where only the reservoir capacitor does not measure leaky)
Cheers
Mike

Thanks Mike - hopefully my fumblings will encourage others to tackle this lengthy but relatively straightforward procedure?

Let me know if you decide to restuff the can in your Alba 461 - happy to answer any questions.

Al (astral highway) · 16th Oct 2020, 5:53 pm

A very neat job and a detailed write-up, Donald.

All in all a useful resource in case anyone is working this out from first principles, and with limited tools.

Good luck with the next stage of your restoration.

DonaldStott · 18th Oct 2020, 5:59 pm

Quote:

Originally Posted by astral highway

A very neat job and a detailed write-up, Donald.

All in all a useful resource in case anyone is working this out from first principles, and with limited tools.

Good luck with the next stage of your restoration.

Thanks Al - for those still interested, the adventure continues from Post#24 here More BUSH DAC10 Woes!

16th Oct 2020, 1:05 pm	#21
Refugee Dekatron Join Date: Apr 2012 Location: Worksop, Nottinghamshire, UK. Posts: 4,835	Re: Restuffing Dual Electrolytic Can Capacitor That radio has got electric teeth with those HT terminals top side.

16th Oct 2020, 5:53 pm	#24
Al (astral highway) Dekatron Join Date: Nov 2006 Location: London, UK. Posts: 3,303	Re: Restuffing Dual Electrolytic Can Capacitor A very neat job and a detailed write-up, Donald. All in all a useful resource in case anyone is working this out from first principles, and with limited tools. Good luck with the next stage of your restoration. __________________ Best wishes, Al "Plans are useless but planning is indespensible..." (Eisenhower).