[Amps] 3-500Z labeling

[Jim Durham]

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