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

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

Tread base electrolytic caps
#1

Does anyone have any suggestions on how to go about rebuilding threaded base electrolytic caps?  I did one awhile back and it came out, well just say, not so pretty.
#2

Ralph, there are a number of ways to do them. One way can be seen in my Philco 50 thread about 8 posts into the thread is where the electrolytic cap work starts.

Chuck shows another way on the Philco Repair Bench.
#3

Bob,   Thanks for the tips.   I have to take another look at my cap but I think it’s crimped on the bottom with the lead connection coming out of the middle of the crimp through a rubber insulator.   I still might just cut it.    I’ve placed a cardboard tube cut to an approximate length and diameter with the length just a bit longer than the cap then pushed the base on with some clear silicone sealer on the cardboard to glue it all together.  Lots of experience out there to be tapped into and thought maybe someone had a miracle fix.  ?
#4

post a picture of what you have. I'm positive someone on here has stuffed it before.
#5

Will do.   I’m new here so gotta figure out how to do that without blowing up the site.  Lol.
#6

There are a couple of ways and then some.

My favourite two are:

1. If the cap has the cap (no pun intended) with a deep groove, I cut it around the groove, restuff and then glue the cap back.
2. In case the cap has no cap but has the groove at the bottom, and is held by a clamp, I cut above the groove so the cut would be hidden inside the clamp, then put a plastic pipe piece of reasonable length and fitting diameter inside and glue both halves to it.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#7

see this to add photos..
http://philcoradio.com/phorum/showthread.php?tid=29
#8

Thanks for the guidance!
#9

Thanks klondike98!    For some reason I pictured the caps smoothly formed on top without a crimped cap.   I was wrong.  I checked out your links and the restuffing worked out excellent.  Much neater job than my previous attempts.   I used a dremel tool with a cutoff wheel, cutting about midway thru the narrow section.  I first marked a vertical line with a sharpie starting from the top and down the side approx 1”.  I then cut around the cap.  I used the line to realign the cap matching the cut.  A little alcohol and the line is gone after restuffing.  Thanks again!
#10

Icon_thumbup




Users browsing this thread:
[-]
Recent Posts
Refinishing Ideas
Hi Poulsbobl, I think that you could get away with it.  In the Philco Library, there is a parts listand specs for sp...MrFixr55 — 11:54 PM
Philco 46-480 Electronic Restoration
The sleeving for the transformer arrived early, so I went ahead and finished reassembling. The chassis looks far better ...jrblasde — 10:15 PM
Philco 610B oscillator wiring
I don't know what you are referring to when you say "tube cathode ground". Ground is a connection to the chass...RodB — 05:56 PM
Zenith H725
Good points, Arran. I haven't encountered this problem with any other radio (all earlier vintages), so am learning here....EdHolland — 05:32 PM
Zenith H725
Ed; One thing that I will say about these is that Brand Z was considerate enough to make these mica caps easily acces...Arran — 02:34 PM
Philco 610B oscillator wiring
Do you know what run # your chassis is? It took me a while to find what you were basing updates/modification on as I did...Radioroslyn — 07:34 AM
Need to purchase some accessories for restoration of my Old Philco Radio
COLLEAGUES, Thank you all for such good and important suggestions as how to find good replacement parts. I will go fo...palonso — 07:05 AM
Zenith H725
Here's what the inside of AM IFT2 looked like, and the other pic shows the discs I made to take place of the mica and ke...EdHolland — 07:40 PM
Zenith H725
IF2 will need replacement caps. The arcing was severe enough that the mica is pitted and holed where the HT flashed over...EdHolland — 04:04 PM
My Philco 37-116 Restore
Measuring from center tap like the tube voltages show. Cap 127 is isolated from ground. Cap 127 shown in upper left of p...dconant — 08:05 AM

[-]
Who's Online
There are currently 782 online users. [Complete List]
» 1 Member(s) | 781 Guest(s)
Avatar

>