27 Sep
2012
27 Sep
'12
1:29 p.m.
C: About then. This one had green nixie tubes (are all
green displays nixie=
tubes I should ask?). I used to have a Radio Shack calculator w/a green di=
No. AFAIK _no_ green displays are nixie tubes (what gas would they have
to contain I wonder?)
Most green displays are vacuum fluorescent (VF) units. The design is
electrically a triode valve wit ha fluorexcent anode. Note that soem VF
displays had other coloured segments or annucaitors too -- A red 'error'
annuciator, for example.
Green LED displays exist, but are not common. Even less common are 7
segment LED displays with a red and a green LED for each segmetn allowing
mutlicolour operation. They exist though. I've nver seen an RGB 7 segment
LED display.
LCDs can, I guess be backlit in any colour :-)
-tony