In Reply to: FWIW the GRAAF GM 200 and the GM 20 are quite different. posted by Ralph on February 1, 2012 at 12:26:40:
I briefly looked at the schematic that Luca provided, and I do believe I saw a separate supply for the front end of the GM20. But the output tubes shown on the GM20 schematic are unlabeled triodes, which I believe to have been 6C33Cs. Whereas the GM200 is using something else for outputs that appear to be pentodes. In a circlotron, which the GM20 is, could one run the front end off one or both of the output supplies, successfully? I would not have thought so.
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Follow Ups
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - Lew 13:18:26 02/01/12 (4)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - Banat 14:40:51 02/01/12 (3)
- RE: FWIW the GRAAF GM 200 and the GM 20 are quite different. - Lew 15:04:17 02/01/12 (0)
- The GM20 has some similarity to the Cecil Hall patent.nt - Ralph 14:49:58 02/01/12 (1)
- RE: The GM20 has some similarity to the Cecil Hall patent.nt - Banat 16:06:13 02/01/12 (0)