18-12-2019, 05:36 PM
Jeffrey, they have metal pins about 25mm long and 3.5mm diameter. Modern 4mm diameter 'banana' plugs will fit, but the pin length isn't long enough to switch the internal contacts. I may phone or email Birketts to see if they have any. Hardings shop in Cheltenham is another possibility, otherwise an on-line search may find some suitable connectors.
