[Boatanchors] WTB: Two National Tube Shields

[Freeberg, Scott (STP)]

I want to buy 2 National Tube shields like those used in the SW-3 or =
FB-7. I think they are also used on the HRO's also.  They consist of an =
aluminum base, cylinder, top, and cap.  I will be shielding a type 58 RF =
stage and a type 58 Detector stage with them.   I am duplicating a 1933 =
receiver project by George Grammer.  Can you help me?  Thanks,=20
73, Scott WA9WFA
http://www.qsl.net/wa9wfa