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  #16  
Old 07-23-2016, 12:47 PM
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I got yet another B&K tube tester today at the radio club. It's a B&K 465 - one that I've wanted for a long time. Unfortunately, the color adaptors are all busted and it doesn't read right. If I can ever find my contact cleaner, I'll take it apart and clean the controls. I did not get the manual with this - does anybody know what the switch that says "Meter N/S" means?
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Last edited by TUD1; 03-12-2017 at 06:57 PM.
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  #17  
Old 07-23-2016, 02:34 PM
tom.j.fla tom.j.fla is offline
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I found the schematic for the 465 here: http://www.elektrotanya.com/bk_465_c.../download.html .All the best, Tom
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  #18  
Old 07-23-2016, 03:19 PM
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I got one of those..

SR
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  #19  
Old 07-23-2016, 06:56 PM
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The 465 does have its problems, though. The B&W-R/G/B switch doesn't work on the B&W-R setting, so it's useless for testing B&W tubes. The G1 voltage pot is not very smooth, and the color CRT adaptors are coming apart, so you can't test color CRT's. Not to mention, the case is falling apart, but we glued it back together.
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Old 07-24-2016, 01:01 PM
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Does anybody have any idea what I can use to replace the color gun selector switch on my B&K 465? Is it just a standard switch I can buy?
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  #21  
Old 07-24-2016, 03:10 PM
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Looks like a pretty standard 3 position slide switch to me. Probably an off the shelf item from electroswitch, alco, grayhill or one of the other switch manufacturers. Start looking through slide switches on Digikey/Mouser/Newark and see what you can find that matches dimensions and switching action. Manufacturer's name/number on it anywhere?

A discarded color TV chassis might have a "Normal/Raster/Service" switch that might work as a sub....
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  #22  
Old 07-24-2016, 03:57 PM
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Quote:
Originally Posted by TUD1 View Post
I did not get the manual with this - does anybody know what the switch that says "Meter N/S" means?
It is a meter sensitivity switch... most tubes are tested in the normal (N) position, but some require the sensitive (S) position.

9yp4, 140ab4, 140cb4, 230db4, 230eb4, 230hb4, a2310w, ct468 and 11sp22 require the S position.

jr
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