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  #1  
Old 03-17-2010, 10:04 PM
tvdude1 tvdude1 is offline
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Can you tell me the difference from a 10bp4 and a 10bp4A? Whats the A all about please?
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  #2  
Old 03-17-2010, 10:09 PM
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jeyurkon jeyurkon is offline
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Quote:
Originally Posted by tvdude1 View Post
Can you tell me the difference from a 10bp4 and a 10bp4A? Whats the A all about please?
The A version has a gray filter glass faceplate. The other has clear glass.

John
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Old 03-18-2010, 11:13 AM
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kx250rider kx250rider is offline
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I believe that the A also indicates aluminized; a coating of aluminum over the phosphor, which increases brightness.

Charles
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Old 03-18-2010, 11:30 AM
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jeyurkon jeyurkon is offline
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Originally Posted by kx250rider View Post
I believe that the A also indicates aluminized; a coating of aluminum over the phosphor, which increases brightness.

Charles
The 10BP4C and 10BP4D would be aluminized, not the 10BP4A. At least according to the datasheets I've looked at.

John
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Old 03-18-2010, 04:50 PM
tvdude1 tvdude1 is offline
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Thank you boys for info.
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  #6  
Old 03-18-2010, 06:50 PM
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amptramp amptramp is offline
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According to the GE tube manual:

10BP4 = clear faceplate, not aluminized
10BP4A = grey faceplate, not aluminized
10BP4C = clear faceplate, aluminized
10BP4D = grey faceplate, aluminized

They have no listing for a 10BP4B.
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