[Drake] tube testers

Sun, 11 Apr 2004 08:02:51 -0800

Gary,

I have one too. I use nine as a "relative tester" meaning relative to a
known new tube. If you don't get satisfactory answers I will check mine out
and see how it compares to yours. When checking 6jb6 tubes using the given
settings the needle barely makes it to the "good" reading with a new tube.
Actually it probably usually doesn't quite make it. I think some of the
settings on the roll chart may be suspect as some other tubes don't come
close .I would be curious how yours does with a 6jb6 on the recommended
settings.

Marty

----- Original Message ----- 
From: "Gary Poland" <[email protected]>
To: "Drake Listserver ( QTH.NET )" <[email protected]>
Sent: Sunday, April 11, 2004 6:32 AM
Subject: [Drake] tube testers

> Anyone using a Hickok 6000A? I just bought one and I had to repair the
meter. Not sure if in doing so I disturbed its accuracy. Any way I get
different mutual conductance readings depending on which range I use, 3000,
6000, or 15000 uMHOS? Is this normal? Replacement meters are available so I
may end up replacing it anyway.
>
> 73, Gary
>
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