In Reply to: RE: OMG! Those look like they were hand made by Lee de Forest himself! nt posted by Ed Sawyer on March 29, 2017 at 10:18:03:
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.
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Follow Ups
- 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)
- 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)
- Yeah, the book mentions that the Moorheads were copies of the French - alaskahiatt 20:41:22 03/29/17 (0)