Best 7591 listed at:
Best 7868 pairs listed at:

7591 / 7591A / 7868 US Brands only (click on links below to check stock) 7591 SYLVANIA / WESTINGHOUSE 7591A GE / SYLVANIA / TUNGSOL 7868 GE / RCA / SYLVANIA
7591 (US BRANDS ONLY) (T9 Bulb, Vfil=6.3V @ 800ma, Vplate=450Vmax, Power=19watts, 6GM5=9pin version of 7591A) (these old USA made 7591/A sound dramatically better than the newer types made in Russia) - McIntosh 225 - Fisher 500C 1964 - Scott 299C - Scott LK-72 - Scott 340B 1964 - Univox U305R - Sansui 1000a 1970 - Eico ST-70 7591 Black Base 1960-1963 7591 NOS 1960-1963: (Vplate=325V, Vscreen=325V, Vgrid=-12V) ------------------ 1 tube $85) 7591 Sylvania NOS original box (45ma, Gm=8000) 1 tube $80) 7591 Westinghouse rebranded Tungsol NOS - slightly smeared printing on base (45ma, Gm=7700) SINGLE TUBES used: ----------------- 1 tube $40) 7591 Westinghouse branded as Harmon Kardon used/good 1960-1963 (38ma, Gm=6300) 1 tube $40) 7591 Westinghouse branded as Lowery Organs used/good 1963 (34ma, Gm=7000)
7591A Black Base AUDIO GUILD CORP BONHAM 330 1960's Ampeg Gemini II G-15 Ampeg Reverberocket II 1960's McIntosh 225 Mcintosh MA230 early 60's McIntosh MAC-1500 1965 Scott Harmon Kardon Fisher Receivers Sansui Sherwood S5000II

7591A Black Base NOS: (Vplate=325V, Vgrid=-12V) -------------------- 1 platinum pair $190) 7591A Sylvania rebranded GE black base NOS original boxes 1960's - same build (Gm=8500-9000) (best pair) 1 tube) 51ma 1 tube) 53ma 1 platinum pair $190) 7591A Sylvania black base NOS 1960's 1 tube) 7591A Sylvania yellow print (53ma) (Gm=9200) 1 tube) 7591A Sylvania rebranded GE white printing (51.5ma) (Gm=9000) SINGLE TUBES: ------------ 1 tube $85) 7591A Sylvania RCA NOS original box 1960's (59ma, Gm=8750) 1 tube $80) 7591A Sylvania rebranded GE NOS original box 1960's (45ma, Gm=8250) 1 tube $45) 7591A Sylvania black base rebranded GE NOS broken center guide pin 1960's (46ma, Gm=8250) 7591A Black Base used/test good, some like new: ---------------------------------------------- 1 tube $35) 7591A Sylvania black base used/tests good - no printing 1960's (40ma, Gm=6500) 1 tube $40) 7591A Sylvania black base used/tests good - no printing 1960's (63ma, Gm=8600)


7591A coin-base/wafer-base 7591A GE Coin-Base/Wafer Base: ----------------------------- listed below 1 tube $80) 7591A GE coin-base NOS branded GE NOS (52ma, Gm=8500) 1 tube $80) 7591A GE coin-base NOS branded Realistic Long-Life NOS (60ma, Gm=8800) 1 tube $75) 7591A GE coin-base NOS 1970's smeared printing (44.5ma, Gm=8500) 7591A Sylvania Coin-Base/Wafer Base: ----------------------------------- listed below sold) 7591A Sylvania coin-base NOS original box 1970's (78ma, Gm=9250) 1 tube $80) 7591A Sylvania coin-base NOS original box 1970's (66ma, Gm=9000) 1 tube $80) 7591A Sylvania coin-base rebranded RCA NOS (53ma, Gm=8800) 1 tube $35) 7591A Sylvania coin-base rebranded Amperex slightly faded top getter used/like new (56ma, Gm=8000) 1 tube $32) 7591A Sylvania coin-base branded RCA used/good 1970's (37ma, Gm=7700)
7591A Display tubes 7591/7591A dud display tubes $2 each: ------------------------------------ 1) branded RCA broken guide pin, shorted 1) Toshiba Hi-Fi gassy 1) branded Fisher, shorted 1) GE coin-base, dead
7868 Beam Power Tube (7868=Novar pin variant of 7591A) (best sounding 7868 in stock are RCA, followed by Sylvania and GE) - Ampeg Reverberocket R-12R 1965 - Ampeg Jet 12 1960's - Fisher Model 400 FM Multiplex Receiver - Fisher X-100B 7868 RCA black plate 1963 tipped, 7868 RCA gray plate 1960's, 7868 Sylvania and Sylvania branded RCA, 7868 GE 7868 GE GRAY PLATE: ------------------ 2 Pairs $145/pair) 7868 GE NOS 1960's 7868 RCA GRAY PLATE: ------------------- Best 7868 RCA pairs listed at:7868 STOCK 7868 RCA BLACK PLATE: -------------------- 1 tube $75) 7868 RCA black plate tipped early 1960's NOS (51.5ma) 1 tube $35) 7868 RCA black plate tipped branded Wurlitzer for RCA 1963 used/good (56.5ma) 1 tube $28) 7868 RCA black plate tipped branded Wurlitzer for RCA 1963 used/like new condition/65-70% (36.8ma) 7868 SYLVANIA GRAY PLATE: ------------------------ Best 7868 Sylvania pairs listed at:7868 STOCK 7868 SYLVANIA USED: ------------------ 1 tube $22) 7868 Sylvania tipped rebranded GE used/test 60-65%