4 Vintage Matched
Raytheon
JRP 5687WA
Audio Tubes
NOS NIB
USA

Buyer gets aa 4 of the tubes in the photos.  These tubes were tested in my Military Hickok Cardmatic to make sure these were perfect.   All the tests were excellent.  All 4 of these tubes were made in the USA, by Raytheon, in the 1960's, for the US Military.  These are the black plate, halo getter version.  
These are getting scarce and are a high end tube used by most of the professionals.   Great for any audio amplifier.  These tubes are what audiophile enthusiasts are looking for.  The tubes will come in their original Raytheon JRP 5687WA boxes, as shown.  These tubes are NOS (New Old Stock).  

Raytheon codes:  280 63-47, 63-47, 63-47 & 6407

Test results: 94 (9870 GM), 94 (9870 GM), 92 (9660 GM) & 91 (9555 GM), where a minimum good is 50 (5250 GM).  These are a matched NOS quad.


International Shipping will be USPS First Class International $35.00 to all Countries.

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 NOS (New Old Stock) tubes!