05-26-2026, 01:06 AM
Mike:
Assuming you can't find another RF shield assembly from a parts chassis (the same chassis was also used in consoles) I don't think it would be impossible to make as you at least have one or more originals to use as a pattern. I would try making patterns from cardboard, or stiff plastic first, but I think that what you mainly need is someone with a brake to bend up the partitions, though using a vice and angle iron will work. Is the RF shield steel or aluminum? In the pictures the bottom portion looks like aluminum. I think that the chassis rails may be as the R7 Nipperette/G.E S-22 chassis, though the length may be different, I picked up some steel channel somewhere to make some for my J-82, but never got any further then that, I have the ones from my G.E S-42A to use as a pattern, if I can find the channel again.
I don't have one of these sets but I have one of it's younger siblings, the M-81, it also has eight tubes, but doesn't have the extra RF amplifier stage, however I don't think it's much easier to work on, lots of rock hard rubber/gutta percha covered wire, and it has a dead audio interstage transformer too, but it's a more normal one. They are nice sets, but the parts quality suffered with age, almost all of the resistors like to drift.
Regards
Arran
Assuming you can't find another RF shield assembly from a parts chassis (the same chassis was also used in consoles) I don't think it would be impossible to make as you at least have one or more originals to use as a pattern. I would try making patterns from cardboard, or stiff plastic first, but I think that what you mainly need is someone with a brake to bend up the partitions, though using a vice and angle iron will work. Is the RF shield steel or aluminum? In the pictures the bottom portion looks like aluminum. I think that the chassis rails may be as the R7 Nipperette/G.E S-22 chassis, though the length may be different, I picked up some steel channel somewhere to make some for my J-82, but never got any further then that, I have the ones from my G.E S-42A to use as a pattern, if I can find the channel again.
I don't have one of these sets but I have one of it's younger siblings, the M-81, it also has eight tubes, but doesn't have the extra RF amplifier stage, however I don't think it's much easier to work on, lots of rock hard rubber/gutta percha covered wire, and it has a dead audio interstage transformer too, but it's a more normal one. They are nice sets, but the parts quality suffered with age, almost all of the resistors like to drift.
Regards
Arran
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