[R-390] IERC 6020-B cans

[Peter Cade]

I've been putting together a set of Tube Shields for an R390A and have
manged to find them all but the6920-B's. 

since these are the med 9pin shields I must assume they're the most popular,
and hence hardest to find. eBay 

often has all the others, with a couple thrown in, but I just want 12 of 'em
-9 for the 390, and  3 for another project.

Any suggestions ???

 

Pete