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Perk up your 410B.......or other bridge tube VTVM.




 
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Author Topic: Perk up your 410B.......or other bridge tube VTVM.  (Read 1017 times)
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WA4WAX
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« on: October 16, 2015, 09:51:47 AM »

So says the man from NRI.  Eliminate that annoying wandering zero.  See page 30.

http://www.americanradiohistory.com/Archive-Electronics-World/60s/1962/Electronics-World-1962-08.pdf


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Patrick J. / KD5OEI
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« Reply #1 on: October 16, 2015, 11:37:43 PM »

That's a good read. I heard that someone had solid dtaed them with FETs, however the tubes are fine and save the drift the instrument is excellent. I use several 400HR/LR types, love them!
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