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OMG! Those look like they were hand made by Lee de Forest himself! nt

216.67.36.157

In Reply to: RE: What are some of your most vintage tubes? posted by Alpha Al on March 28, 2017 at 12:09:45

nt

Follow Ups:

RE: OMG! Those look like they were hand made by Lee de Forest himself! nt - Ed Sawyer 10:18:03 03/29/17 (3)
They are european, so not from deforest. And they probably pre-date his commercial offerings.
- I see that now. The tube on the far left is a French Metal TM from WWI. - alaskahiatt 11:25:26 03/29/17 (2)
  I am guessing that the other two tubes are from the same or another French company of the same time period. I am cheating by using the vacuum tube history book pictured below.
  
  I do love alpha Al's pictures.
  - RE: I see that now. The tube on the far left is a French Metal TM from WWI. - Alpha Al 18:13:08 03/29/17 (1)
    I don't know much about these. I wondered what "Metal" meant. Didn't realize that was the manufacturer.
    
    The tube in the center was made by Moorhead.
    - Yeah, the book mentions that the Moorheads were copies of the French - alaskahiatt 20:41:22 03/29/17 (0)
      four pin tubes, as Moorhead was contracted in WWI to supply the British military who had been using the French tube designs.

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