I bought a Philco 39341 at a Value Village store for $20 (BEST $20 I ever spent).Anyways it is missing 3 tube shields for the 6A7,78 tubes and I can probably get them from Oldradioparts.com etc.. but in the meantime could I make a form out of bristol board /toilet roll etc( for stiffnes) and wrap and glue several layers of aluminum foil on the inside and outside and maybe drill a few holes in the sides for ventilation for heat to escape ? This radio and my others can be seen on my Youtube channel which is : Thermionman1970

Can be inventive with temporary shields as long as they are grounded to the chassis.

Zenith used foil-lined paper shields for some of their post-war sets - primarily with miniature tubes. No ventilation was provided - the inside paper form fit snugly against the tube's glass envelope. The paper is dark gray, possibly fish paper?

Except for the power tube and the rectifier (which shouldn't need shielding), the glass temperature may not get high enough to cause a problem with the paper.

But, for safety, watch it.

:Except for the power tube and the rectifier (which shouldn't need shielding), the glass temperature may not get high enough to cause a problem with the paper.
:

I have found that aluminum flashing can be made into shields. Its so thin a sissor will cut it, forms easily and I used pop rivets to close. PL

:But, for safety, watch it.
:
::Except for the power tube and the rectifier (which shouldn't need shielding), the glass temperature may not get high enough to cause a problem with the paper.
::
:
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