From Brian Seeley@3:770/3 to All on Friday, June 07, 2019 11:51:31
I saw a time back a dead test cart for the 64 that had a toggle switch to use the cart as a V586220 which I believe allowed use of a harness for troubleshooting and when you flipped the toggle it would be a V781220 which did
not use a harness. I believe
I saw these on ebay, but cannot seem to locate them anywhere - any ideas or info?