DIYbanter - View Single Post - NE-51 Neon Bulbs

MJC

In article , says...
The 1966 GE Glow Lamp Manual says a B1A (NE-51) draws 0.3 mA
with a 220k ohm resistor at 120 volts.

My recollection of playing with neons in my youth* is that they run
stably at about 50V. Leaving 70V across the 220k resistor. That's pretty
close to 0.3 mA. QED!

* As an apprentice project, I built a clock that used four 5x7 blocks of
neons for a digital display.

Mike.