Perryman PR 281 PR 381Speed X Black/Silver Mesh Plate Rectifier Globe Tubes

Description

This is a Buy it Now for 2 very rare actual Black Screen grid C-281 Radio tubes from Perryman Manufacturing
These tubes are in good condition and are tested on 2 Certified Calibration machines
One. a Tv7 D/U and the other a 177-B Both Hickok
56 /40 or 1400 Michromos over a minimum of 40 or 1000 Michromos
Perryman was an early manufacturer of tubes that had some unique quality to them
They had a spring suspension for the element so it could expand and contract. Patented 1927
This is a chance to get a very cool early pair of 281 tubes with plenty of life left
Dont miss a chance to get a rare black screen grid matched pair
I am selling off my personal collection of tubes. I do not sell tubes with problems or loose bases. All Tubes I am selling are Tested on a recently calibrated and certified by Dan Nelson TV 7 D/U tester
You can be confident you are getting quality Tubes. Thank You.