PADS, Valve Retaining ZA/CAN 4625
The two vertically mounted valves in the lower left front of the chassis also have their shield assemblies held in place with a retainer. This one, however, can actually be found in the Master Parts List as a PADS, Valve Retaining ZA/CAN 4625 It is a rectangular steel plate with a grey felt pad glued to the bottom of it and a central slot cut half way into the middle of it.
This PADS slides over a threaded shaft and it fastened in place with a wing nut.
With the lower receiver front panel now removed, I was able to take a closer look at the threaded shaft used to fasten the PADS in place. It turns out to be nothing more than a Slotted, Truss Head 10-32 x 1-inch NF Machine Screw threaded all the way into a hole at the apex of its mounting plate, and then soldered in place. So if the one on your 52-Set receiver is damaged in any way, it can be replaced.
David
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