[Heathkit] hole in SB cabinet

[Drew P.]

Paul Kraemer asked:

> A friend asked "why is there a rectangular cutout in the
> rear of some SB line cabinets"? I confessed to not knowing
> the answer to that one. Now I am curious. Why did Heath
> pre-punch that hole like a knock out? What is it for?

...to which Glen Zook responded...
 
> The knock out was there so that a Molex connector could be
> added for the Heath SB-500 2-meter transverter.  Also,
> some of the SB-Line transceivers came with the Molex
> connector already installed.

My SB-101 has the connector but, as mentioned previously, there is no mention of it in the manual, and it does not show on the schematic.  My curiosity about the connector was satisfied when I looked at a schematic for the SB-102, which shows the connector and associated circuitry.

Drew