Can anyone please identify this connector, as used for the output of the ±10 VDC "ACH" series power supply for a Roland R-8 drum machine from the late '80s?
The male socket into which this fits has internal measurements of about 18.0mm x 9.5mm.
Annoyingly the female pins are larger than the "standard" 0.093" Molex connector pins that you'd find in e.g. a hard drive power connector.
(I don't have this plug, this is a photo found online)