[NostalgiaRadioTime]

No I think he just has the empty cabinet. He said it's in beautiful shape so I think he may be better off trying to find another 37-623B with a bad cabinet and steal the chassis and speaker from it. I suspect there is something different between the 640 and 623 size wise. He may be forced to build a power supply or get an ARBE III. I thought perhaps Ron or someone may have encountered those two models over the years for comparison sake.