Hello,
I was recently pulsing a coil at fairly high voltages (200-600VDC) using DC squarewave, at fairly high frequencies (100Hz - 1.3KHz). The output of the coil had a Neon bulb attached.
I wasn't measuring current output at the time.
At one point, i don't remember the frequency or voltage, the Neon bulb glowed a brilliant white, with a purplish edging.
This lasted a few tens of seconds then the bulb blew.
Until this point, as far as i knew, the emission spectrum for Neon included only orange/red/green and purple at 450nm.
Can anyone explain this ?
Thankyou,
DC.
I was recently pulsing a coil at fairly high voltages (200-600VDC) using DC squarewave, at fairly high frequencies (100Hz - 1.3KHz). The output of the coil had a Neon bulb attached.
I wasn't measuring current output at the time.
At one point, i don't remember the frequency or voltage, the Neon bulb glowed a brilliant white, with a purplish edging.
This lasted a few tens of seconds then the bulb blew.
Until this point, as far as i knew, the emission spectrum for Neon included only orange/red/green and purple at 450nm.
Can anyone explain this ?
Thankyou,
DC.