Author Topic: WE Copper Plated 684A Su8bset  (Read 925 times)

Online Doug Rose

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WE Copper Plated 684A Su8bset
« on: January 16, 2017, 02:21:43 PM »
I went to remove the bad paint and thought I saw some copper. I stripped it, this is phase one still more to come. I have seen a few 684 like this with a 302 ringer in them. Was this a WE upgrade?...Doug
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unbeldi

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Re: WE Copper Plated 684A Su8bset
« Reply #1 on: January 16, 2017, 02:42:20 PM »
The 684 subscriber set is smaller in height above the back plane, manufactured starting in ca. 1930.

This is a 634-type subscriber set, but was manufactured in the 1910s or 1920s as one of the 500-series subscriber sets.  However, going by the catalogs, some types of the 634 class were still manufactured in the 1930s.

Western Electric experimented with various methods to protect equipment from corrosion and copper plating was likely one of them.  Accounts exist that describe the annual loss and failures in the plant due to corrosion in the millions of dollars.   I have no detailed information during which exact time frame copper plating was tried, but my observation from acquired sets, that were dated in 1929, seems to indicated that this was done in the second half of the 1920s.


PS: I don't think it is ever necessary to remove all paint.  Just sand the existing finish to remove any roughness and repaint with a semi-gloss enamel paint.
« Last Edit: January 16, 2017, 04:22:58 PM by unbeldi »

Offline Jim Stettler

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Re: WE Copper Plated 684A Su8bset
« Reply #2 on: January 16, 2017, 03:04:02 PM »
I have seen those before. I suspect it is going to stay copper but look prettier.

JMO,
Jim S.
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Online Doug Rose

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Re: WE Copper Plated 684A Su8bset
« Reply #3 on: January 16, 2017, 03:09:17 PM »
thanks Karl.....good info. I saw the copper and gave it a go..... As Jim said to look prettier, but there  are few few spots that might no be able to be removed, but gives it character  8)


Forgot the bottom pic and the subset cord is in great shape...Doug
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Offline Pourme

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Re: WE Copper Plated 684A Su8bset
« Reply #4 on: January 16, 2017, 03:46:30 PM »
I'd polish it up a bit and have a unique sub set!

But that's just me... :)
Benny

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Offline Jim Stettler

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Re: WE Copper Plated 684A Su8bset
« Reply #5 on: January 16, 2017, 03:54:51 PM »
It might look good with a set like this>

Jim S.
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Offline Pourme

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Re: WE Copper Plated 684A Su8bset
« Reply #6 on: January 16, 2017, 04:01:36 PM »
That is a unique look, Jim S.!
Benny

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Offline Jim Stettler

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Re: WE Copper Plated 684A Su8bset
« Reply #7 on: January 16, 2017, 04:05:02 PM »
It  is a copper plated retirement set. I used to own it but traded it away.
Jim S.
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Offline Pourme

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Re: WE Copper Plated 684A Su8bset
« Reply #8 on: January 16, 2017, 04:13:57 PM »
It would look good used with Doug's copper subset.
Benny

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Offline Sargeguy

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Re: WE Copper Plated 684A Su8bset
« Reply #9 on: January 16, 2017, 05:51:11 PM »
I have a 334 subset in copper and I think Dennis Markham restored one.  I have never seen a 634 in copper.  I think these were used in marine environments where corrosion risk was high.
Greg Sargeant
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unbeldi

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Re: WE Copper Plated 684A Su8bset
« Reply #10 on: January 16, 2017, 06:05:45 PM »
I have a 334 subset in copper and I think Dennis Markham restored one.  I have never seen a 634 in copper.  I think these were used in marine environments where corrosion risk was high.

I have a subset that was in service in the Belfast, Maine area.  Certainly close to a lot of water.

Offline Dennis Markham

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Re: WE Copper Plated 684A Su8bset
« Reply #11 on: January 16, 2017, 07:09:24 PM »
I have a 334 subset in copper and I think Dennis Markham restored one.  I have never seen a 634 in copper.  I think these were used in marine environments where corrosion risk was high.

This is the 334A that I stripped while doing a refurb.  It had many coats of paint on it.  By removing the outer layers I ended up removing some of the original paint.  I just plowed through and brought it down to the copper color, then sprayed with clear coat.

http://www.classicrotaryphones.com/forum/index.php?topic=2433.msg36717#msg36717

Sorry to hijack your thread, Doug.

Offline Pourme

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Re: WE Copper Plated 684A Su8bset
« Reply #12 on: January 16, 2017, 09:01:58 PM »
Now I want to look under the paint at my subsets to see if any of them are copper.
Benny

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Offline Nick in Manitou

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Re: WE Copper Plated 684A Su8bset
« Reply #13 on: January 16, 2017, 11:08:49 PM »
Now I want to look under the paint at my subsets to see if any of them are copper.

Magnet?

unbeldi

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Re: WE Copper Plated 684A Su8bset
« Reply #14 on: January 17, 2017, 08:07:17 AM »
Magnet?
These subsets are made from steel and only plated with copper.

H.G. Arlt, Finishes on the Metal Parts of Telephone Apparatus, BLR 9(4), 175 (December 1932)

Nickel platings and composite finishes
consisting of combinations of nickel
and copper platings are used as rust
preventives on parts on which the
use of zinc is not advisable.


See also:
W.G. Knox, Lacquering and Plating in the Laboratories, BLR 7(12), 162 (December 1929)
« Last Edit: January 17, 2017, 09:17:12 AM by unbeldi »