Electrolytic Can Capacitor Replacement Good Practice - UK Vintage Radio Repair and Restoration Discussion Forum

BrianAllen · 28th May 2020, 5:19 pm

I have searched around for information/photos of under the chassis electrolytic capacitor replacement but not found anything that I would be happy with.

Does anyone have a link to a website or pictures of how they have replaced axial and radial capacitors under the chassis.

Thank you.

Graham G3ZVT · 28th May 2020, 6:21 pm

If I am concerned about the aesthetic look of a replacement, my instinct is not to replace it, but to re stuff the original can.

What type and era of equipment do you have in mind?

BrianAllen · 28th May 2020, 6:34 pm

Hiya, I wasn't thinking of removing the can but installing the capacitors under the chassis.

It is a Bush PB. 12.

Graham G3ZVT · 28th May 2020, 9:21 pm

Looks easy enough, plenty of room for modern 400v capacitors.
Use the tag board for the +ve side of the caps, (R23) and the -ve sides to a suitable earth point, perhaps the common on the original cap. Do disconnect both +ve connections on the original, it would indeed be bad practice not to do so.

Are you sure you don't want to re stuff the can, it's fun.

BrianAllen · 28th May 2020, 9:31 pm

Thanks Graham, just the info I was looking for.

I have a few radios that I am working on, so maybe will try stuffing the can on my next one as keen to get this one up and running.

Brian

28th May 2020, 5:19 pm	#1
BrianAllen Heptode Join Date: Nov 2018 Location: Staffordshire Moorlands, UK. Posts: 595	Electrolytic Can Capacitor Replacement Good Practice I have searched around for information/photos of under the chassis electrolytic capacitor replacement but not found anything that I would be happy with. Does anyone have a link to a website or pictures of how they have replaced axial and radial capacitors under the chassis. Thank you.

28th May 2020, 6:21 pm	#2
Graham G3ZVT Dekatron Join Date: May 2010 Location: Greater Manchester, UK. Posts: 18,724	Re: Electrolytic Can Capacitor Replacement Good Practice If I am concerned about the aesthetic look of a replacement, my instinct is not to replace it, but to re stuff the original can. What type and era of equipment do you have in mind? __________________ -- Graham. G3ZVT

28th May 2020, 6:34 pm	#3
BrianAllen Heptode Join Date: Nov 2018 Location: Staffordshire Moorlands, UK. Posts: 595	Re: Electrolytic Can Capacitor Replacement Good Practice Hiya, I wasn't thinking of removing the can but installing the capacitors under the chassis. It is a Bush PB. 12.

28th May 2020, 9:21 pm	#4
Graham G3ZVT Dekatron Join Date: May 2010 Location: Greater Manchester, UK. Posts: 18,724	Re: Electrolytic Can Capacitor Replacement Good Practice Looks easy enough, plenty of room for modern 400v capacitors. Use the tag board for the +ve side of the caps, (R23) and the -ve sides to a suitable earth point, perhaps the common on the original cap. Do disconnect both +ve connections on the original, it would indeed be bad practice not to do so. Are you sure you don't want to re stuff the can, it's fun. Attached Thumbnails __________________ -- Graham. G3ZVT

28th May 2020, 9:31 pm	#5
BrianAllen Heptode Join Date: Nov 2018 Location: Staffordshire Moorlands, UK. Posts: 595	Re: Electrolytic Can Capacitor Replacement Good Practice Thanks Graham, just the info I was looking for. I have a few radios that I am working on, so maybe will try stuffing the can on my next one as keen to get this one up and running. Brian