From: Frank McConnell <fmc(a)reanimators.org>
I no longer
have a Northstar, but wasn't it 1/2"?
The presumably vintage cover from the Horizon that sits in my office
(yes, Fred, the one I got from you) is about 7/16". For all I know
that could be 3/8" or 1/2" in plywood inches.
No idea where you got that from. Mine MEASURES .740! I've seen
home made ones that were any thing but right.
And yes, NorthStar did make the Horizon with a metal
cover too. I
think it's a metal cover on the same underlying frame.
The were the wood and the metal but not both unless they
tried to comply with FCC (NOT!).
Allison