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Vacuum Tubes Answered

What kind of vacuum tubes are these? What can they be used for, etc? I found them from an 80's TV.

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steveastrouk

7 years ago

They look like neon lamps to me, and possibly a high voltage limiter.

Neon's are high voltage discharge tubes, and will light up, drawing a small current. They need a current limiting resistor.

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tinstructablesteveastrouk

Reply 7 years ago

Probably high voltage limiters... they weren't near the front in view

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steveastrouktinstructable

Reply 7 years ago

There were also some very clever tricks pulled with neons as active devices in the circuits of the set. The details elude me.

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iceng

7 years ago

Could also be argon lamps are blue, neon is red-ish.