Eveready
Raytheon
ER280
Type 80
Globe
Engraved Base
Box Plate
Rectifier Vacuum Tube
Made in USA

Fully tested by calibrated Hickok 539C tube tester
with no shorts, leakage or gas. 

Measurement: 
72/96
where minimum good value is 54

I will gladly combine shipping upon request.

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The tube(s) in this sale include a 30-day satisfaction guarantee.
I strive to ensure you have a completely satisfactory purchase experience.
If you are unhappy with your purchase for any reason,
you can return the item for a full refund.

Please contact me directly prior to opening a return or leaving feedback.
I will almost always reply at least within 24 hours 
to remedy the situation for you with direct communication.