2 Vintage Matched
Ken-Rad/GE
JAN CKR 6B4G
Black Glass
Audio Tubes
NOS


 Buyer gets both of the tubes in the photos.  These tubes were tested in my Military Hickok TV7/A tester to make sure these were great.   All the tests were excellent.  Both of these tubes were made in the USA, by GE (branded Ken-Rad), in the mid-1940's.  These are the very rare early black glass version.  These are know for being amazing sounding 6B4G tubes.  These were made to the highest quality for the US Military and they were also tested by ITT Labs.   
Great for any audio amplifier.  These tubes are what audiophile enthusiasts are looking for.  The tubes will come in the JAN 6B4G boxes, as shown.  These tubes are true NOS tubes and trophy quality.  I will pack carefully & ship very quickly.
 
Test results:  62 & 60 whereas a minimum good is 33 on this Hickok tester.  These are a matched pair.

SHIPPING & HANDLING -  USA:

I will use USPS Priority Mail.

Note: Item will be packed, in a professional manner
and ready to ship, within 1 days of payment.  I have great feedback on my packing.

No Returns! These are trophy quality, NOS tubes!