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Old 12-08-21, 16:55
Bruce Parker (RIP) Bruce Parker (RIP) is offline
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Join Date: Feb 2003
Location: SW Ontario, Canada
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Dave, they all harden over time and better storage only slows the process. For my operating 19 sets I leave the headsets plugged in rather than risk breaking them. I've also noted that sunlight and warmth softens the snatch plugs as well as No.8 and No.9 aerial bases (this I discovered by accident when displaying vehicles with radios at various shows). A long term make work solution would be to cast new ones. The sculpture supply store I go to has dozens of plastic/resin mold materials one of which I'm sure would duplicate the right WW2 rubber consistency.


Quote:
Originally Posted by David Dunlop View Post
Although I am physically inactive with the 52-Set Project at the moment, my Mind plays by a different set of rules. In this instance, it is firmly entrenched in the next step beyond getting the Main Set Receiver back up and working. It is merrily churning up all sorts of things relative to the Supply Unit.

One of the things on my Mind is the above noted parts, the conical rubber connectors between the various headsets and drop cords found on many wartime Commonwealth Wireless Sets. On the 52-Set, there are two 5-Point Sockets, No. 5 mounted amidships on the Supply Unit, of which one socket looks like it had a blow torch applied to the end of it, it is so badly deformed. So it will end up getting replaced with an NOS spare I have on hand.

Currently, on the “wireless-set-no19 Group” website in England, there is a very interesting topic running about the chronic failure of all sorts of electrical wiring in the Clansman and Larkspur wireless sets. The rubber insulations crumble rather like the wartime synthetic rubber tyres used to on CMP vehicles.

That thread brought me back to these wireless connectors. I have a headset connected to my Wireless Set No. 19 Mk III, which I still fire up from time to time and the plug and socket were last disconnected from one another some 20 years ago. It was a relatively easy thing to do. Gently flex the joint between the two pieces until the metal retaining ring popped out of its groove and then pull the two pieces apart. I tried doing that a couple of years back when I started the 52-Set Project and the first thing I noticed was the two rubber cones felt VERY hard and there was definitely no desire for the area around the joint to flex at all. So I stopped trying.

While looking for Headsets No. 10 for the 52-Set, I found a minty set on which the central rubber plug in the connector had been popped free. Why this was done I do not know, but it looked like a screwdriver had been dug about in the seam between the two parts to accomplish the task. Electrically this headset is perfect, but for the life of me I cannot reinsert the circular plug back into position. The rubber is just too hard.

What my Mind is playing with now is the notion I may very well get the complete 52-Set restored and running perfectly but not be able to connect a headset to it because all these conical rubber 5-Point Plugs and Sockets have hardened up too much over time.

So my questions are if anybody else has noticed these Plugs and Sockets have hardened up, is anyone still able to easily connect and disconnect these pieces on their wireless sets and is there a way to refurbish these pieces…just in case?



David
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