Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

How to deal with cardboard cover for filter cap
#1

Finally got my last filter cap redone for my 66MB but it does not have a cardboard covering. Thought about cutting out a piece of paper towel tube to cover with but it has the strips on it where the glue was used to hold down the last sheet when it was wrapped at the factory.

Also would need to color it so it would sort of match the existing filter cap on the chassis and attach it so that the cover could be removed by sliding off of the can itself. So how does everyone else accomplish this?
#2

I never try to reproduce the appearance of those wretched old wax and cardboard electrolytics.
#3

Well, it needs the covering since the can is isolated from the chassis.
#4

A ring of cardboard (paper towel tube sliced down) or fishpaper in the clamp
area will do the job to insulate the can from the chassis ground.

Chuck
#5

If this relates to protective sleeves for the aluminium capacitor tubes, I read somewhere - maybe on this phorum - how to do this, and eventually did manage it with reasonable results.

If you take the cut down cardboard tube (toilet roll etc), wet it and wrap it around a piece of PVC pipe of the right diameter, holding it in place with elastic bands until dry, you can make something passable. If you leave a very small piece of the cardboard tube projecting over the end of the pipe, you can crush it down when still wet which gives you the 'rolled over' effect for the top. I darkened it afterwards by spraying it with lacquer. Make a few and pick the best ones
#6

Yes, on models such as most 1932-1938 Philcos, they did not use cardboard to cover the entire can - just enough to keep the body of the capacitor can from making electrical contact with the clamp holding it to the chassis, or from the chassis itself. So it should not matter if the replacement cardboard tube you use is not 100% aesthetically pleasing, since it will be mostly hidden by the clamp anyway.

--
Ron Ramirez
Ferdinand IN




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM

[-]
Who's Online
There are currently 1935 online users. [Complete List]
» 1 Member(s) | 1934 Guest(s)
Avatar

>