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3-500z tube

  • Thread starter Thread starter kswitchdr
  • Start date Start date
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kswitchdr

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Is it possible for a new in the box tube to go bad or get weak if it has been setting on the shelf for 4 or 5 years ? Thanks,Mike.


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Is it possible for a new in the box tube to go bad or get weak if it has been setting on the shelf for 4 or 5 years ? Thanks,Mike.


</p>
 
<blockquote>Quote:<hr>If you have a High Voltage Breakdown tester that will go to 3000 Volts or more, you can catch these before installing one in an amplifier.<hr></blockquote> If you don't have a HV tester but do have a old microwave oven laying around (or know where one is), A variac (Can be found relativly cheap on e-bay) and a few other pieces,, you can build your own.<img src=http://www.ezboard.com/intl/aenglish/images/emoticons/wink.gif ALT=";)"> www.nd2x.net/k8cu-HV-tester.html


<hr />73, Mike KD5VHF@ARRL.net</p>
 
<blockquote>Quote:<hr>If you have a High Voltage Breakdown tester that will go to 3000 Volts or more, you can catch these before installing one in an amplifier.<hr></blockquote> If you don't have a HV tester but do have a old microwave oven laying around (or know where one is), A variac (Can be found relativly cheap on e-bay) and a few other pieces,, you can build your own.<img src=http://www.ezboard.com/intl/aenglish/images/emoticons/wink.gif ALT=";)"> www.nd2x.net/k8cu-HV-tester.html


<hr />73, Mike KD5VHF@ARRL.net</p>
 

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