Bloody good gig at the Exchange tonight. Left us all buzzing. It was short notice so unrehearsed for ages. We have a big gig at the Earl Haig in February and two rehearsals to sort new material. After tonight happy we don't have to focus on the existing set.
Had my cumuppance.
After declaring ordinary skeleton jacks are fine that on my Flea Jazz (2018 or thereabouts) started cracking loudly.
Turned out the (apparently) silver plate had tarnished badly around the contact area. Contact cleaner and a polish with a rough cloth restored function.
I'm assuming silver plate as the tarnish was black.
No they're not.
Acoustic instruments have them, and many semi-acoustics and some others (e.g. many Gibsons) have decorative ones and have rear-routed control cavities.