Raytheon 923 Gas Phototube Vacuum Tube NOS NIB

Raytheon 923 Gas Phototube Vacuum Tube NOS NIBThis Raytheon 923 gas phototube is new old stock and new in box. It is sold as is as I could not find a tester setting for it. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE

Tube One drew 14

minimum (65%) is 2600)

1 % CHANCE THIS MIGHT HAPPEN

This new old stock-testing

This matched pair of new old stock-testing General Electric / GE 12SN7 12SN7GTA dual triodes was tested on our Jackson 648 Mutual Conductance tester for shorts

There were no shorts or gas and they measure as follows:

I am playing them in my RC-2 monoblocks with The Beatles' "Revolver" and they sound terrific

It has copper support rods

These four new old stock

This beautiful gray and silver matched pair of type Sylvania type 59 tubes was tested our Paul Hart-calibrated TV7/U for shorts

IF A TUBE FAILS AFTER YOU GET IT

where minimum (65%) is 40/40 and 100% is 61/61