Thanks John,

All this information was really helpful. I was able to light up a
couple of segments using two batteries. I connected a 3v battery to
the filament and connected another 9v battery with positive terminal
on the grid and the segment and the negative terminal on the filament
where negative terminal of 3v battery was connected.

I didn't connect the filament's positive terminal to the battery
directly, instead I connected the wire momentarily to the filament. I
noticed that when I completed the circuit to the filament, it would
glow dim but once I interrupt the circuit the segment would glow
bright to dim and turn off (like a capacitor). So I need to oscillate
the filament as you suggested.

Thanks once again.

Regards,

Chetan


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Chetan Bhargava
Web: http://www.bhargavaz.net
Blog: http://microz.blogspot.com

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