scratch said:
Here's a pic. I don't have a manual and can't find one online.
Ouch-- that's a problem. The first 1265's that came out used a plastic connector that looked like a good one, it passed qualification testing but as it turned out didn't hold up in the field. We had to switch back to the metal Switchcraft Slimline connectors that were the metal detector industry standard for so many years. And we weren't the only company that got bit-- Teknetics (the 1980's company in Oregon) tried the same connector and also had to abandon it.
The best fix is to switch the housing to the Slimline connector, but that involves some mechanical revisions since the connectors are different sizes and install differently. I doubt we even have the special pieces needed to make the conversion any more, that was about 25 years ago.
The next best fix is to find the mating connector, install that on the searchcoil cable, and treat it gently in hopes that it'll last a while before it fails. It's still being manufactured but I don't recall the manufacturer, think it was Amphenol or AMP (which may be same company?). It's probably in the Digikey, Mouser, and/or Allied catalog.
The metal detector business teaches a fellow in the business to regard connectors as a necessary evil. So many look like they should work, and yet so few actually do. Not even the Slimline is perfect.
--Dave J.