Hello Jim,
Could you not mount it on 4 round Teflon insulator posts internally
threaded to divorce top and bottom mounting bolts from tying the choke
electrically to the plywood?
Tuesday, October 22, 2019
Best regards,
Chris 2E0ILY mailto:chris@chriswilson.tv
JT> I'm going to stack 2 x identical sheets of 3/4" plywood
JT> together in the new 24" rack.
JT> The 127 lb Dahl 4H choke will sit dead center on the plywood. Is
run of the mill
JT> paint in a spray bomb conductive ? Or should I be using
JT> indoor latex, outdoor latex... or something else, like BBQ
JT> repair high temp paint ? Or perhaps fire resistant paint ?
JT> 2x2 angle aluminum down each side of rack, with plywood on
JT> top of em. Entire mess will be up off the bottom just
JT> enough so I can get my hands underneath to tighten up the
JT> 1/4-20 nuts. 1/4-20 is max size that will fit the 4 x
JT> slotted holes in the 2 x angle steel's, at base of choke.
JT> I don't trust the insulation breakdown..... which is just a
JT> single sheet of....'fishtape' at bottom of each side of
JT> choke. Fishtape partially torn on one side. Each sheet is 21 x
22.75
JT> Only the top sheet and front and rear edges to be
JT> painted. Its just for aesthetics. The choke is part of a
JT> C-L-C experiment I am playing with these days..for a B+
JT> supply. Choke has a 25 kv-65 A spst-nc kilovac ceramic relay
JT> across it.... plus an adjustable spark gap. Spark gap is
JT> just a pair of 1/4-20 silver plated brass screws..with 1/4-20
JT> acorn nuts facing each other.
JT> Jim VE7RF
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