General Electric 6LF6 6MH6 Matched QUAD Tubes for Counterpoint NYAL Futterman

What you see is a a rare matched and graded Quad Set of New Old Stock (NOS) GE manufactured in late 1980's 6LF6 (6MH6) vacuum tubes that were used in vitage OTL amplifiers manufactured by Futterman, NYAL and Counterpoint.  Back in 1988 I had Counterpoint SA-4 mono tubed amplifiers that used matched octet 6LF6 tubes.  That meant 16 each 6LF6 tubes for two mono SA-4 amplifiers.  I loved the amps so much that when I heard GE was going to stop manufacturing 6LF6 tubes in 1988, I purchased a lot of 300 each 6LF6 tubes last production run directly from GE tube distributor.  When I received the shipment, I sent it to the famed audio engineer Roger Modjeski of Music Reference RAM Tubeworks and Tube Audio Store to have this lot matched and graded using his test equipment.  Roger Modjeski is the actual engineer who designed SA-4 OTL amplifiers.  Roger Modjeski also has 100 each of these tubes but he will charge you a lot more for matched set.  His price is $79.95 each at his thetubestore dot com.
The lot you see of 94 tubes is what I have left.  I can supply more matched tubes.  If you are interested in buying the entire 94 each tubes, please let me know.