[Amps] Henry 2K-4 Failure

[mark bitterlich]

Or you could try a new tube ......
-------- Original message --------From: Adrian <vk4tux at gmail.com> Date: 3/19/20  18:17  (GMT-05:00) To: Jim Thomson <jim.thom at telus.net>, amps at contesting.com Subject: Re: [Amps] Henry 2K-4 Failure Thanks Jim, you can't beat words from those experienced.I guess a cathode test plug could be made to substitute one tube plugging intothe socket .A dead tube could have its base made up for this, with resistor added tocathode connections equalling the hot value.Then interchange tubes on the remaining socket to compare.vk4tuxOn 20/3/20 3:32 am, Jim Thomson wrote:>> Grid to cathode short & ?stayed failed? means you just need an>> ohmmeter. No need to swap tubes, etc.>>>> Gerald, VE1DT>>> ##   Nope.  The  grid  to cathode  short  only  happens  with  tube  fil  lit.....  not  when  cold.> When  cold,  both  a HI  pot  tester....  and  also  a megger  wont  work  either.>> Jim    VE7RF> _______________________________________________> Amps mailing list> Amps at contesting.com> http://lists.contesting.com/mailman/listinfo/amps>_______________________________________________Amps mailing listAmps at contesting.comhttp://lists.contesting.com/mailman/listinfo/amps