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Re: [Amps] 3-500Z labeling

To: amps@contesting.com
Subject: Re: [Amps] 3-500Z labeling
From: Jim <jimw7ry@gmail.com>
Date: Sat, 8 Dec 2018 22:45:20 -0600
List-post: <mailto:amps@contesting.com>
Are there serial numbers on the grid mounting disk/cone below the plate?


Thanks
73
Jim W7RY

On 12/7/2018 11:09 PM, Jim Durham wrote:
Hey Paul,
Look very hard in a good light. I think I have seen labeling on older tubes fade so badly that it looks like there is nothing there.

73, Jim, W2XO

On 12/6/18 10:36 AM, Paul Baldock wrote:
I have two 3-500Z's that I removed from a Drake L4B. These tubes have no brand labeling or residue of labeling. They are the variety that have 5 Anode disks. Has anybody seen 3-500Zs with out brand marking?

- Paul  KW7Y

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