[AMPS] Which 3-500Zs?

[Jim]

I would stay away from NOS Eimac tubes.

1. No warranty
2. They have a tendency to get gassy with age.
3. I have had several NOS Eimac tubes that have been defective out of the
box.

I was unsuccessful in getting the gas out of the tube.  The gas was so bad,
the tube arced inside when attempting to apply drive.

The Chinese tubes that RF Parts sells are great. And have a great 1 year
warranty.

73 and let us know how you make out.

Jim W7RY

----- Original Message -----
From: "Pete Smith" <n4zr@contesting.com>
To: "Floyd Sense" <sentek@sprintmail.com>
Cc: <amps@contesting.com>
Sent: Saturday, May 12, 2001 12:35 PM
Subject: Re: [AMPS] Which 3-500Zs?


>
> At 03:23 PM 5/12/01 -0400, you wrote:
> >
> >Was just looking for a source for 3-500Zs and see that there are a
variety
> >of Chinese brands, as well as some NOS Eimacs and Amperex.  Any
> >recommendations as to which to avoid or which might be the most reliable?
>
> Hi Floyd -- suggest you go to www.contesting.com, and in the box at left
> labeled "list search" enter the search terms "amps" and "3-500Z."  There
> have been many, many postings on this subject over the years and this
> search will get you all of them at once.  Of course, you could narrow
> things further by adding search terms like "quality."
>
> BTW don't include the quotes in the search terms.
>
> 73, Pete N4ZR
> Contesting is!
>
>
>
>
>
> --
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>


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