21 Jul
2010
21 Jul
'10
9:07 a.m.
On Tue, 20 Jul 2010, Tony Duell wrote:
Sure, but I don;t think any manufaturer tried to
include CRTs in their
valve numbering scheme. I remember the Mazda CRT code, it started with a
Of course they did, in their own way. Just have a look at the European CRT
numbering scheme, for example MW53-20, AW59-90, DG7-12. M=magnetic focus
TV tube, A=electrostatic focus TV tube, W=white phosphor, D=scope tube,
G=green(ish) phosphor; the first number is the diagonal, the second number
is the actual part number within this series. The even kept this scheme
with the first color TV tubes with X as color code. They later moved the
color code to the end (e.g. A59-23W, A63-120X).
There are more codes like for radar tubes, polar coordinate tubes, other
colors and so on.
Christian