Pull the tube and then key the relay.
Ohm out the tube is about all you can do easy without a test jig. Its
not an easy tube to short though.Id suspect something else first.
Carl
KM1H
----- Original Message -----
From: "Pat Lees" <pclees@charter.net>
To: <amps@contesting.com>
Sent: Sunday, November 02, 2008 6:59 PM
Subject: [Amps] Al 1200 Ameritron
>A friend has an Ameritron Al 1200, as soon as he keys the relay the
>fuse blows.
>
> HV is normal >
>
> What is most likely the problem ? Tube ?
>
> How can I check his tube ?
>
> Tnx
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>
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