one of my friends found a few of these tubes yesterday in great shape.
They are farnsworth tubes. Not sure of its operation. It looks like a photo type tube?
Jamie
one of my friends found a few of these tubes yesterday in great shape.
They are farnsworth tubes. Not sure of its operation. It looks like a photo type tube?
Jamie
Can't imagine.
This one looks like an early PMT prototype:
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:
Is the date 1939?
Farnsworth used a photomultiplier inside his image dissector TV camera tube.
These are cool:
This looks like a sniperscope-type image converter. Maybe.
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
That is an image converter tube. Probably IR to Vis.
Used in very old night vision equipment?
ok, so I guess they maybe worth something to a collector?
Jamie
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,
Article says "hand blown glass television tube" but looks more like an IR image converter.
Now _that_ looks like a PMT; see the dynodes.
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