Go Back TV - Video - Vintage Television & Radio Forums > Early B&W and Projection TV

We appreciate your help

in keeping this site going.
Thread Tools Display Modes
Old 05-03-2018, 10:38 AM
rld-tv01's Avatar
rld-tv01 rld-tv01 is offline
VideoKarma Member
Join Date: Feb 2005
Location: Seal Beach, Ca
Posts: 514
Farnsworth Image Tube

Is this Farnsworth Image amplifier tube on eBay an Image Dissector or another similar type.
Is this tube historically significant since the first Farnsworth Image Dissector was produced in 1927 while the patent on this tube is much later at July 1942?

Last edited by rld-tv01; 05-03-2018 at 12:37 PM.
Reply With Quote
Old 05-03-2018, 11:41 AM
Tom9589 Tom9589 is offline
VideoKarma Member
Join Date: Jan 2013
Posts: 140
Did you note who was selling this item? The wife of a son of Farnsworth.
Reply With Quote
Old 05-03-2018, 11:33 PM
StellarTV's Avatar
StellarTV StellarTV is offline
VideoKarma Member
Join Date: Jan 2007
Location: Sacramento, CA
Posts: 486
Wish I hadn't missed out on this listing.
Magnus Rubsam
Stellar Vintage Electronics of California
CRTs, Restorations, Chassis, and Color Conversions
Reply With Quote
Old 05-04-2018, 09:44 AM
rld-tv01's Avatar
rld-tv01 rld-tv01 is offline
VideoKarma Member
Join Date: Feb 2005
Location: Seal Beach, Ca
Posts: 514
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
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 10:34 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
ęCopyright 2012, All rights reserved.