DOES ANYONE KNOW WHAT COLOR, A CRT WITH P-31 PHOSPHER,
DISPLAYS TO THE EYE.?...THANK YOU....ELMER

Hi Elmer

Green, it's described as, Medium-Short Persistence and used in oscilloscopes.

Norm

: DOES ANYONE KNOW WHAT COLOR, A CRT WITH P-31 PHOSPHER,
: DISPLAYS TO THE EYE.?...THANK YOU....ELMER

HI NORM AND THANKS FOR THE INFO....THIS FORUM AND
ESPECIALLY YOU ARE A FANTASTIC PLACE TO GO WITH
QUESTIONS....YOUR BATTING AVERAGE WITH ME IS 100%
THANKS AGAIN.....ELMER
: Hi Elmer

: Green, it's described as, Medium-Short Persistence and used in oscilloscopes.

: Norm

:
: : DOES ANYONE KNOW WHAT COLOR, A CRT WITH P-31 PHOSPHER,
: : DISPLAYS TO THE EYE.?...THANK YOU....ELMER

Hello, Elmer,

P31 was the standard phospher used in nearly every Tektronix
oscilloscope of the 1970s - 1990s unless a special option was
ordered (usually for a hot-to-the-scope-camera P11 I think
it was, expecially in 7904s). So anytime you see a standard
7000-series, 5000-series or 400-series portable, you'll be
seeing a P31. Oh, but the color will be off a little bit on
most Tek scopes because a blue filter is installed as standard
equipment to help with contrast.

Of course, in this day of DSOs, the high-speed CRT is nearly
gone, replaced by full-color, computer-controlled CRT or LCD
displays.

Dean (a former Tek tech)