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PG13
•
30
<0.5pF
<10 ohms
PG13
NEON BULB
Curre
nt F
lo
w
In the case of the neon bulb, it is a little more complicated. Sometimes it may
light due to the high electrical and magnetic field around the transformer, and
sometimes it may light due to the capacitor formed by the air as the dielectric
and the bulb gas and the transformer as the two plates. These effects are
interrelated however, so here is the basic principle of the neon bulb circuit and
why it lights.
The advantage of using a neon bulb in this fashion is that neon ionizes quite
easily. In the case of most neon indicators, it will begin to ionize at 60 to 90
volts, and can then be sustained at much less than that, usually 30 or so volts.
In other words this makes a great indicator that we have high voltage on the
output without having to draw a spark, or perhaps get electrocuted by
accident!
DANGER
HIGH VOLTAGE
See instruction manual before operation
Содержание PG13
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Страница 42: ...PG13 42 Component Placement...