[Amps] Ameritron AL-811H-- Again

k7fm k7fm at teleport.com
Sat Oct 1 21:35:00 EDT 2005


" This was c. the same time that I found out that General
Electric Medical had cancelled a contract with Dick because he failed to fix 
the problem of sudden 8877 failures in a MRI amplifier that he was 
manufacturing for G. E."

As I recall, the "parasitic" problem with the Alpha amps occurred at exactly 
the same time that Eimac made a batch of bad ceramic tubes (in particular, 
the 8877).   At the same time you were analyzing the problem, Eimac changed 
the construction of the tube.  I am still amazed that your analysis of the 
parasitic problem in the Alpha amps resulted in reduced problems for Alpha 
owners, even though Alpha did not implement your ideas.

Colin  K7FM 



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