Reconditioning old phono sockets

Jun 29, 2005 7 Replies

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N Cook 21 years ago

I've just repaired someone's Rogers domestic stereo valve amp. He wants something doing about the 12 'loose' phono (signal ) sockets on the rear. These are plated brass of the same material as paxolin backed tag board. Thin plated brass strip curved both ways ino a cylinder with a gap so of course opens out over time and use. They are easily accessible as a side panel is removable but anything better than just squashing each one with pliers. Rubber Hellerman sleeve slid over each with 3-jaw expander pliers is all i can think of but will it work?

Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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nesesu 21 years ago

If these are the type I think you are describing, one needs only to very slightly compress the metal on each since it the gap...perhaps a

1/4mm or so. Usually these get loose from over use or from using plugs with great gobs of solder on them..either added to 'tighten the fit' or just badly made in the first place. If you compress the clip very much you can damage the cylindrical insulator in front while trying to insert the plug for the first time.

Neil S.

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jakdedert 21 years ago

It might, but would require unsoldering each to install. Considering the infrequency with which these are usually disconnected, I think I'd just 'squash' em and be done with it. A dose of Cramolin wouldn't be out of order....

jak

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N Cook 21 years ago

just thought of cutting small grommet to encircle each then tighten a small cable tie round each to avoid desoldering everything

Cramolin ?

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sofie 21 years ago

cramolin = contact cleaner

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Jim Adney 21 years ago

Help me out here. What is a Hellerman sleeve?

----------------------------------------------- Jim Adney snipped-for-privacy@vwtype3.org Madison, WI 53711 USA

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-ex- 21 years ago

This explains it...

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-Bill

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N Cook 21 years ago

Hellerman sleeves - principaly used in UK military / avionics multiway trident or similar connectors. Slid over where wire enters the pin and the pin to reduce possibility of pin to pin or stray wire filaments cross- contacting pins. Rubber sleeves placed on 3 way prong expanders (cue smutty terms relating to brides) to enable assembly.

Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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