Querry on Burroughs symbol tubes

[Bogdan Paduraru]

Dears ,

I have received a couple of Burroughs symbol tubes and I have some trouble with identifying some of them , if I could say .

The issue is with 2 tubes that share the same symbols with one  marked as B-5994_ 4 (_ = empty space and the last 4 is a little bigger than the rest of characters ):  This tube displays : F , Omega (small size ) , Hz , A , V , S (small size )

The other 2 tubes share the same symbols with the difference that the Omega and S are with the same size as the other characters ; unfortunately the marking are erased , but I could " see "the last numbers on one of them as  952 or 962  , Could that be the B-59952 as listed on AJ Franzman list ?

PS , maybe some one has a more comprehensive list of tubes  made by Burroughs and National that is willing to share .

Thank you
Bogdan

[Bogdan Paduraru]

and the photos of the mentioned symbols; and I did not find any information on the tubes or about any of the test gear that might use them