USED
Removed from some vintage radio receiver equipment.
Tested (wet rub test and the 'sniff' test - formaldehyde odour) and confirmed as Bakelite material
UNIDENTIFIED MANUFACTURER - Male Plug
Circa 1950's based on the equipment it was removed from (British made too!)
Material: Bakelite (Black)
3 pins
Male
Arranged in a row with a rectangular base - 2x "fatter" & longer pins with one of a smaller diameter and shorter length
From memory, this type of plug was used to connect the B+ & heater supplies from a seperate power supply module.
Larger Pins (2) are 3.1mm diameter x 14mm length
Shorter pin is 2.25mm diameter x 10mm length
The pins are spaced in such a way that they are "keyed' incorrect insertion orientation into the socket is not possible
The pins are HOLLOW, this is because the method of attaching wires is as follows:
Strip back the insulation, insert the wire from the rear of the socket and 'sweat' solder into the pin at the front end of the plug. Heat from the iron is not an issue because Bakelite withstands much higher temperatures than modern 'standard' plastics - the pins will not become misaligned while you are soldering.
It looks to me as though the body is entirely one piece, I could not see a way to get 'inside' the plug.
DIMENSIONS:
Length of the plug is 28.75mm
Width of the plug is 7.4mm
Total length front to back (including the pins) is 22.25mm
COSMETIC CONDITION:
USED
CLEAN
Bakelite body has NO cracks or chips
NO discolouration
I have carefully removed any old wire strands from inside each pin, leaving the pins hollow and ready for insertion of new wires.
The pins are shiny and clean, not oxidised!
This plug has now been completely sealed in a clear plastic packet, awaiting the new owner!
