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 Post subject: Re: Tube ID
PostPosted: May Wed 24, 2023 6:19 pm 
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Joined: Mar Fri 07, 2014 9:20 am
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Location: Marystown NL Canada
So you are saying it is no good at all?


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 Post subject: Re: Tube ID
PostPosted: May Thu 25, 2023 5:21 am 
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Location: Phila., PA 19115
spsquires wrote:
So you are saying it is no good at all?


Pretty much so. :(
Just to be sure, you could put a 1 ohm several watt resistor in series with the filament and read the voltage across it to verify that it is drawing current, although the tube should feel warm after awhile.

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 Post subject: Re: Tube ID
PostPosted: May Fri 26, 2023 1:23 am 
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Did you test it for shorts and gas?


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 Post subject: Re: Tube ID
PostPosted: May Fri 26, 2023 8:41 am 
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Joined: Mar Fri 07, 2014 9:20 am
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Location: Marystown NL Canada
How does one test for shorts if not sure of tube, to set tube data for test?


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 Post subject: Re: Tube ID
PostPosted: May Fri 26, 2023 7:06 pm 
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Location: Oak Creek, WI USA
Any triode on a 4-pin UX base has the same pinout. The fat pins are the filament, pin 2 is the plate and 3 is the grid. Set it up in the tester as a 45 and run through your shorts tests.


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