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#4
02-23-2010, 07:12 PM
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Anybody got a NOS GE 2BU2A? Check the box for the little white patent number label that leads you to the patent GE got for the lead silicate glass they used. No other tube manufacturer licensed the patent, 3854964.
Hence, you had RCA and others making an electrically equivalent tube with less X-ray protection and with a nice disclaimer. When I worked at Cain Electronics selling both RCA and GE tubes, we quickly figured out why the RCA tubes didn't sell. It took confirmation from the GE folks as to why. Cheers,
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Brian USN RET 22YRS (Avionics/Cal) CET-Consumer Repair and Avionics ('88) "Capacitor Cosmetologist since '79" When fuses go to work, they quit! Last edited by Findm-Keepm; 02-23-2010 at 07:18 PM. Reason: clairifcation 
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