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They eBay Image Amplifier auction ended early with no online bids. Hopefully a museum got the Image Amplifier tube.
I did a google search for the Image Dissector sale results of the June 2010 Farnsworth Museum in Auburn Indiana and came up with the following:
Grouping of Image dissector tubes: some tubes are damaged, please see pics, many are marked Farnsworth
Sold for: $ 150.00
Early Farnsworth Image Dissector: Early Farnsworth image dissector, measures 4" diameter, 10" long, includes electron multiplier circuit board, tube configuration is defined in Farnsworth patent 2087683 dated July 20, 1937. Can assume this tube was made late 30's. Tube is in perfect condition, no cracks, no breaks
Sold for: $ 17,500.00
Early Farnsworth Image Dissector: Stamped that it was made by the Farnsworth Television inc., Type 20 TN7, 4" dia, 12 1/2" long, glass tube that supports image plate has been professionally repaired and is as shown in photo. Extremely rare piece of Farnsworth history.
Sold for: $ 1,500.00
Farnsworth Image Dissector: Farnsworth Image Dissector, 4", 1940's, 16" long, significant damage on image entrance end, two connectors are broke off, a lot of cracks, but a good example.
Sold for: $ 350.00
Image Dissector: F4052, no brand name, believe to have the Farnsworth ITT face plate cut off and front mesh torn
Sold for: $ 25.00
Image dissector: thought to be a Farnsworth ITT, electron multiplier is present at base of tube, came from Farnsworth ITT Farnsworth lab
Sold for: $ 40.00
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