Using brighteners?

[kbmuri]

Originally Posted by mattdavala

Well after looking at all of the adapters that came with Mr. 8080 Beltron, none are for my B/W tubes!! Kind of a waste. . . . I need the BR-3 adapter. . . . . and the BR-1 for my roundie.
...

According to my documents there's no such thing as a BR-1. I believe you meant BR-2. The BR-3 does most of the early B/Ws like 10BP4, 12LP4, etc. The BR-2 does early roundie colors like 21AXP22, etc.

For BR-2, you want to do the following:

Beltron Plug Function CRT Socket
----------- -------- -----------
1 - Black Filament 1
5 - Red K Red 2
8 - Yellow G1 Red 3
6 - Orange G2 Red 4
6 - Orange G2 Green 5
4 - Green K Green 6
8 - Yellow G1 Green 7
3 - Blue K Blue 11
8 - Yellow G1 Blue 12
6 - Orange G2 Blue 13
7 - Brown Filament 14

The Beltron plug is numbered
123
456
789

where the slanted/rounded corners are on bottom.