Looks like my power supply is dying again. I'm looking for the name of the manufacturer and part number for the male socket that is on the colored wire bundle that goes from the Apple II+ PSU to the motherboard.
I did see just now, that there is a connector assembly for sale on eBay from a salvaged PSU unit with the colored pigtails still on it, but they want $32 plus shipping. That is an extreme over price if you ask me, for just a pre-assembled (or should I say cut off a blown PSU) connector assembly. But that's the law of supply and demand I guess.
I've got lots of various colored and gauges of wire and crippers and soldering stuff. So all I need is a source of the male 6 pin socket and some of the connectors that go on the ends of the wires and then slip into the connector, and then I can make my own pigtailed unit to connect up an external multi-voltage power source until I can fully diagnose the problem with my dying PSU.
I believe one of the voltage rails is weak as to amps output and the bus voltage is thus dropping under load since I can boot the machine and read a disk but cannot write to a disk. Disk drives take more juice when they format and write.
I've tried different controller cards and disk drives, which were all working yesterday, and its the same issue. I can read disks but not format or write to them. And yes I do have the write protect slot free and clear. :-)
I had previously replaced the across the line C1 capacitor when that blew on the first day I had turned the power supply on after 40 years. But it has been working find for over a week until today. I tried replacing C7 with a brand new one. Still same symptom. So I may have to start desoldering and changing all the Caps in this very old PSU. In the meantime I wanted to keep my Apple fired up using an external power supply. I've got a bunch of working PC power supplies I can use as a source, plus a tech bench mult-voltage supply unit I built way back. I also have one of those "universal replacement board PSU kits" on the way for 10 days now. But intalling that would require me to cut off the socket with pigtailed wires from my weak PSU unit. I'd like to try and fix that over time and not salvage it for parts and connectors.
My best guess is that said male connector is made by MOLEX or a competitor.
I'd buy a non-working PSU unit on eBay for salvage parts but they want almost $100 for one of the non-working ones, i.e., selling for parts only.
So, if anyone knows the brand of the 6 pin male power supply unit socket, please let me know. Thanks in advance