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#1
02-11-2014, 10:50 AM
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TV History
This Farnsworth Photomultiplier tube listed by his son on eBay http://www.ebay.com/itm/Farnsworth-T...item258995eec8 How important is this tube in the history of Television? This is more of a Television history question then curbside posting. I have purchased several RCA and Baird photomultipliers in the $10-$15 range over the years.
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#2
02-11-2014, 11:13 AM
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In that envelope on that base I seriously doubt it was made in the 30s.
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tvontheporch.com
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#3
02-11-2014, 05:32 PM
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IIRC the 8 pin octal base was introduced in 1936 so that is likely the earliest it could have been made.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
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#4
02-11-2014, 05:41 PM
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Farnsworth's prototype TVs of the latter 1930s were still full of fat-pin tubes. If you're familiar with the company's relationship with octal-tube-proponent RCA, that's not surprising.
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tvontheporch.com
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#6
02-11-2014, 06:40 PM
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+1
Peter 
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http://www.nostalgiatech.co.uk/Vintagetech.htm https://www.youtube.com/c/PeterScott/videos
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