This is a matching set of 3 vintage NOS Brimar UK  6SN7GT tubes.  Black glass & black base. Made in England.  Codes are 383/1K9, 383/2K9 and 383/1K9. Full tested with a precision curve tracer and tested for emission and shorts with an AVO 163 tester.  Very good match and consistancy with these tubes - The test results are displayed in this listing.

FREE post to anywhere in the world.

(NB: I have a single Brimar 6SN7 almost identical to these.  I will be made available for an additional $400  via a BIN listing to the buyer of this lot if they request so.)

See my other listings for more vintage and modern tubes as I clear my 30 years collection of vintage audio.