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Old 16th April 2013, 03:41 PM   #1
airegin is offline airegin  Italy
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Default ID Nice Unknown Tube

nice unknown tube, anybody know what it is?

thanks in advance!
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Old 16th April 2013, 03:44 PM   #2
DF96 is online now DF96  England
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Some sort of neon?
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Old 16th April 2013, 04:41 PM   #3
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You can try to find here: G8LSD Valve Collection
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Old 16th April 2013, 05:01 PM   #4
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Affectionately known as a "pawn broker's tube" because of the three balls, it is a type of cold cathode rectifier. The actual number eludes me right now.
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Old 16th April 2013, 05:10 PM   #5
hpeter is offline hpeter  Europe
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surge protector? /telephone lines/
not sure if is possible to have gas rectifier without hot cathode, electrodes look pretty same
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Old 16th April 2013, 05:26 PM   #6
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Quote:
Originally Posted by hpeter View Post
surge protector? /telephone lines/
not sure if is possible to have gas rectifier without hot cathode, electrodes look pretty same
A surge protector is entirely possible. I may have been thinking of something else. However, cold cathode rectifiers are a fact.
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Old 16th April 2013, 06:05 PM   #7
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However, cold cathode rectifiers are a fact.
1940's and early 50's car radios used an 0Z4. Most were in metal cans for shielding, but some glass ones exist. I have several. There are three round metal cylinders, one cathode, two plates. They don't look like this, and they are octal. Purple glow when powered though.
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