Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

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
Jackson 715 not working
Mrfixr55, its working now. I cleaned the switches and sockets with spray cleaner. Thanks for helping on this one.daveone23 — 06:26 PM
Jackson 715 not working
Now that you posted the schematic, I don't know why that Sprague electrolytic cap is across the meter, as it is not indi...MrFixr55 — 05:51 PM
HiFi (Chifi) tube amp build - but my own design.
What may be lacking in the PP Tube amps may be the 2nd harmonics, which some, especially RCA back in the day called &quo...MrFixr55 — 05:32 PM
Jackson 715 not working
Usually in an emission tester, the tube under test is measured as if it were a diode. So, some testers connect all the g...RodB — 04:17 PM
Restoring Philco 37-604C
Yep. F5 is green, D5 is Red. Red is Bad. Green is Clean.morzh — 01:30 PM
Jackson 715 not working
I did start to do that but I stalled out because I could not figure out how the grid and plate get voltage. In this diag...daveone23 — 11:52 AM
Restoring Philco 37-604C
(Insert Homer Simpson "DOPF" Here.) When all fails, look at the can. Took the Ron Ramirez advice, red Caig D...MrFixr55 — 09:23 AM
Philco 91 Speaker Replacement
From your text I am not sure if you intend to use the existing speaker with a resistor instead of the field coil. It wo...morzh — 08:44 AM
Philco 91 Speaker Replacement
My field coil is bad. I am still hoping to find an original, but if I can't I will go with a fitting Philco speaker, 125...dconant — 08:34 AM
Philco 91 Speaker Replacement
As Rod said, it is OK to use a fitting speaker, and then look for an original one. If you buy a Hammond 125 output tr...morzh — 08:15 AM

[-]
Who's Online
There are currently 3891 online users. [Complete List]
» 1 Member(s) | 3890 Guest(s)
Avatar

>