[Chuck Schwark]

Connections are right on. Works fine. Only problem is the batteries eventually wear out and you have to replace them,

The height and width dimensions are perfect. It's a flush match with the original, except the "thickness," like I stated above.

BTW, I had to crimp the brass contacts around the plug pins once mated to make reliable contacts. After 2 or 3 in-out cycles, they tended to get intermittant.

Do you have a 4-prong battery plug to test with? If not, I can send one back with the prototype, de-soldered from my non-working unit.

I can also send back an actual battery pack socket found in the non-working unit someone had removed from a dead pack and soldered new-style battery jumpers onto it to mate with two newer (1950s) batteries.