one of my friends found a few of these tubes yesterday in great shape.
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They are farnsworth tubes. Not sure of its operation. It looks like a photo type tube?
Jamie
What is this tube?
May 27, 2012
7 Replies
Can't imagine.
This one looks like an early PMT prototype:
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The collection looks like Farnsworth's stuff.
John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators
Another one:
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Is the date 1939?
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Farnsworth used a photomultiplier inside his image dissector TV camera tube.
These are cool:
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(orthicon?)
This looks like a sniperscope-type image converter. Maybe.
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I don't see any multipactors in this collection.
John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators
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That is an image converter tube. Probably IR to Vis.
Used in very old night vision equipment?
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ok, so I guess they maybe worth something to a collector?
Jamie
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I have played with that tube before. A long time ago. I think they were used in WW2 sniper scopes and needed an illuminator to work.
If memory serves, they used around 1 kV.
The RCA 6032A was a better tube and is still available on the surplus market.
Regards,
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Article says "hand blown glass television tube" but looks more like an IR image converter.
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Now _that_ looks like a PMT; see the dynodes.
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