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

Fixed Broken Socket Solder Lug - How's this bad???
#1

OK, feel free to tell me how many ways this is bad...

I broke a solder lug (pin 2 / cathode) of a 50B5 while recapping a Dewald E-520 I picked up at Kutztown. I know that's bad Icon_biggrin! I have to be more careful with the rest, the sockets look kind of chintzy. I don't have a replacement socket with the right rivet hole spacing to replace it. So if "fixed" it.

I slightly enlarged the slot the lug comes through on the bottom phenolic wafer. I then attached everything (1 cap, 1 wire, 1 resistor) to the lug. Finally I soldered the lug to the bit of metal going to the socket between the phenolic wafers. I let the solder run in through the enlarged slot. I figure solder is pretty viscous and won't stray very far. I'm not so sure about the flux. Yes I know if someone ever tries to solder to that pin they'll get a surprise.

It works and nothing bad has happened yet...

Thanks
Greg

Can't think of anything witty.
Greg O.
Whitehall, PA
#2

Who ever said anything about bad? If it works, it works.

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.
#3

I have had mixed results trying to repair broken wafer sockets, Canadian Electrohome sets, better results in a 1941 Deforest Crosley, it really depends on how the terminals are constructed. There are two ways you can get a replacement socket, one is to pick up a parts chassis and drill the rivets out, preferably one with molded Bakelite sockets of the right spacing, the other way is to acquire some Russian, Bulgarian, or China made sockets via fleabay, and decipher the metric measurements into Imperial ones, and hope you got it right. Forget about U.S made sockets over fleabay, with few exceptions most sellers seem to think they are made of gold or silver rather then Bakelite, a Ham fest might be another alternative though. NOS wafer sockets are still cheap, but you have to know what your are buying, and as a rule you might as well get a new China or Russian/Soviet surplus Bakelite socket for the same price, which tend to be copies of Eby, Cinch, or Amphenol made sockets anyhow, with the exception of one peculiar design which may have been a Soviet original.
Regards
Arran
#4

Another way might be possible. Is there an unused terminal on the socket? If you are willing to do the "surgery", it might be possible to dismantle the socket, and switch the terminals around.

Just a thought - it may not be possible. For a 50B5, pins 2 and 7 are internally connected, so in theory one of these might be used, if reconfiguration of the wiring allowed.

Ed

I don't hold with furniture that talks.
#5

yeah,, there has to be a particular tube with a pin that is available. even those pins that are used to gather grounds cold be re-purposed. just bring all the terminations straight to the socket ground lug instead of using a tube socket pin.
#6

Or you could rewire it for a 50C5, cathode is on pin 1 and the control grid is on 2 and 5.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
#7

(10-18-2018, 10:06 PM)Greg Wrote:  I let the solder run in through the enlarged slot.

Yikes

Sorry but I would not trust that "repair" any further than I could throw my F-150.

Excess solder inside a tube socket is a big no-no and you're just asking for a short or a carbon track.

My opinion. You don't have to agree with me. You have every right to be wrong if you want to be. (Rev. Lowell Mason, RIP)

--
Ron Ramirez
Ferdinand IN




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM
12' Philco
Not anymore Mike. Andre The Giant Born: May 19, 1946, Coulommiers, France Died: Jan 28, 1993 (46 years), Paris, Fran...RodB — 11:53 PM
IF can wire size and Rubber mounts?
Renovated Radios do carry what you need. As for the voltage, a wire should be at least 300V-rated.morzh — 11:13 PM
12' Philco
Andre the Giant got 2" on Kareem :lol:morzh — 11:11 PM
IF can wire size and Rubber mounts?
Thanks for the info but I doubt that a hardware store would be carrying the proper tuner assembly support mountings for ...georgetownjohn — 10:38 PM
12' Philco
Perhaps Kareem Abdul Jabbar?GarySP — 10:33 PM
My last cabinet for this year
Outstanding work, Dan! Take care and BE HEALTHY! GaryGarySP — 10:31 PM
My last cabinet for this year
They are a nice looking radio, Stromberg. I have a small tabletop octagon-dial one. It sounds surprisingly nice. And t...morzh — 09:40 PM

[-]
Who's Online
There are currently no members online.

>