[Amps] 3-500Z labeling

[Stan Gammons]

Could be Amperex or RF Parts tubes.  https://www.rfparts.com/


73

Stan
KM4HQE


On 12/6/18 9:36 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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