Thanks! It's one of the simplest shields I've come across - just a single sheet bent into a "U" shape. Probably not too hard to fabricate - especially if you have access to a brake.
I'm very happy to have an original though.
I had been using the Riders 810 schematic from the ETF and was getting very confused in a couple spots. Then I took a look at a Wallace Telaide, and it matched mine perfectly. I suspect the Riders covers an earlier revision than my set.
Here's a nice glob of resistors. The schematic calls for 2 X 27K @ 2W, but I discovered 4 x 56K @ 1W.
Maybe they ran out of the correct value on the assembly line ? I suspect a single 13.5 K @ 4W would work fine too.
This chassis is pretty cramped - definitely not my favorite to work on
