[Boatanchors] IERC 5020B Shields

[davkow at charter.net]

Hi,
Found a box a IERC Black tube shields with 5 sided insert. never used, nbr TRT5-5020B, nice, clean, no scratches. These have been in my possession the past 30+ years. Will let go for 100.00 for batch of 20 plus 5.00 USPS to USA. This would be the 7 pin minature tube ie, 6BJ6, or shorter. 2 inches tall and for 3/4 inch tubes. Accordng to GE tests long ago tubes run about 50 degrees cooler with them vs bare bulb.
email   davkow at charter.net  or
phone  507-689-0393  leave msg and speak up, I hear voices better than bells.
Merry Christ Mass.
John