On 01/25/2014 06:02 AM, N_Cook wrote:
These sort of things
http://www.ebay.co.uk/itm/GUITAR-JAC...-/400092374539

Having now got inside one I see why they last no time at all with loads
of jack insertions/extractions a gig, swapping guitars. No name socket
in otherwise good name guitar. The contacts metal are 27x2x0.5mm
supported , reactively sliding only, not postively anchored, at the ends
only. 600gm of extraction force will pull it out and any marginal off
axis strain on the plug, via the lead, in the wrong radial sense will
break contact, so no duck-walking etc. Any like for like replacement
will of course be the same non-functional state in a year or 2s time.
Now I've seen inside then any other one I come across , assuming not
mangled ,just tired, will have the same bodge-mod to bring the
extraction force up to 3Kg or so , and no reason to believe it won't
stay that way for many years.

A lot of players use wireless when duck walking these days. I'd use a
surplus open frame switchboard jack, long skinny brass thing, lasts forever.

http://picclick.com/Bell-System-West...115444323.html