WS19 - Antenna Base fittings

[Tim Bell]

Can anyone advise please... what is the correct antenna insulator to be using with my Sherman Firefly installation?

This is my collection to date... hoping at least one of them is correct.

WS19-Antenna-1.jpg

My guess is the item middle bottom - this has captured nuts within the insulator so the bolts screw into it. I am assuming it is held in place by the nut on the end of the threaded aerial feeder which attaches to the back end of the Variometer... is this correct? The underside of this part is flat, save for a small pin which would stop it rotating.

Next question...

Of the two antenna feed plates... which of these is correct?


Does anyone happen to have the WS19 installation instructions for the Sherman VC please?

Cheers

Tim