Best AUDIO TUBES listed at:

(click on links below to check stock) 6B4G Triode 6B5 / 6B6 / 6B7 / 6B8 / 6B10 6BA6 6BE6 6BH6 6BK7B 6BL7GT / 6BX7GT 6BL8=ECF80 6BM8=ECL82 6BN4 / 6BN6 / 6BN8 6BQ5=EL84 6BQ5=EL84 6BQ7A 6C4 / 6C5 / 6C6 / 6C8 / 6C10 6CS6 / 6CS7 6CW5=EL86 6DA6=EF89 6DE7 6DH7=EM85 Tuning Eye 6DL5=EL95 6DN7 6DS4 Nuvistor
TO BUY 6B4G TO BUY 6B5 TO BUY 6B6 TO BUY 6B7G Pentode TO BUY 6B8 and 6B8G Pentode TO BUY 6B10
6BA6=5749=EF93 Pentode (Also see 5749=6AB6W) - Teaberry Model T Radio 1975 TO BUY 6BA6 US Brands NOS and used
TO BUY CV4009=6BA6 Brimar England
TO BUY 6BA6 Brimar England
TO BUY 6BA6 Philips
TO BUY 6BA6 Valvo

TO BUY 6BA5 TO BUY 6BA7 TO BUY 6BA8A TO BUY 6BA11 TO BUY 6BC4 TO BUY 6BC5=6CE5 TO BUY 6BC7 TO BUY 6BC8=6BS8 TO BUY 6BD5GT
6BE6=5750=EK90 Heptode (Also see 5915, 5750=high reliability 6BE6) TO BUY 6BE6=EK90=5750 TO BUY 6BE6 used/good
TO BUY 6BF5 TO BUY 6BF6 TO BUY 6BF7 TO BUY 6BF11 TO BUY 6BG6G Power Tetrode TO BUY 6BG6GA
6BH6=6661=E90F Pentode (see 7693 for Premium 6BH6 replacement) - Marantz 8B TO BUY 6BH6 NOS TO BUY 6BH6 used
TO BUY 6BH8=6AU8 Pentode TO BUY 6BH11 TO BUY 6BJ6 Pentode TO BUY 6BJ7 TO BUY 6BJ8 TO BUY 6BK4C=6EL4A Sharp-Cutoff Triode TO BUY 6BK5 Tetrode
6BK7B Medium-Mu Dual Triode (sub for Chinese 6N1P) (6BK7B is a very good substitute for the 6N1P) (also see 6BQ7A and 6BZ7, you can sub a 6BK7B for a 6DJ8) (6.3 @ 450ma, Vplate max = 300V) 6BK7-B Application Data Class Va Ia Ra Gm Mu A 150 18.0 4,600 9300 43 TO BUY 6BK7B TO BUY 6BK11 Three Section Triode (also see 6C10) TO BUY 6BL6 TO BUY 6BL7GTA Dual-Triode TO BUY 6BL8 Triode/Pentode TO BUY 6BM6 Klystron TO BUY 6BM8=ECL82 Triode/Pentode TO BUY 6BN4A Triode TO BUY 6BN5 Pentode TO BUY 6BN6=6KS6 Pentode TO BUY 6BN8 Dual-Diode Triode TO BUY 6BN11
6BQ5 = EL84 / 7189 PENTODE TO BUY 6BQ5=EL84 TO BUY 7189 and 7189A 6BQ5/EL84 Near Equivalent = 6CH6/EL821 It is NOT a plug in equivalent for the 6BQ5, but a near equivalent in specs. The grid bias is different, but it is a 9 pin output tube of about the same output power. Similiar to EL84 Mullard, 6BQ5 RCA; same higher quality, long life and reliable. It gives crisp low distortion audio output and transformers designed for EL84 can use this tube. It is a lot more sensitive, and so needs less input to drive to full power. British made, mil-spec, nice black plates. Good for guitar amps or DIY amp projects. Many people love the sound of this tube over a 6BQ5/EL84 FULL SPECS ON 6CH6 listed on the EL84/6BQ5 page TO BUY 6CH6=EL821

TO BUY 6BQ6GTB Beam Power Tetrode
6BQ7A=6BZ7 Medium-Mu Dual Triode (Vplate=125V, Vgrid=-1V, Iplate=15ma, Gm=9000, Mu=42, Rplate=4700 ohms) (also see 6BZ7 and 6BK7B) - Modwright Transporter - Schiit Lyr amp 2011 - Don Allen - Donald North Audio (DNA) Stratus TO BUY 6BQ7A and 6BZ7

TO BUY EM80=6BR5 tuning eye TO BUY 6BR8A=6FV8 TO BUY 6BS3A TO BUY 6BS4 TO BUY 6BC8=6BS8 Dual Triode (6BC8 is a close substitute to a 6BS8) TO BUY 6BU8 TO BUY 6BV7 TO BUY 6BV8 TO BUY 6BV11 TO BUY 6BW4 Rectifier TO BUY 6BW7 TO BUY 6BW8 TO BUY 6BW11 TO BUY 6BX4 Full-Wave rectifier (similar to 6X4, higher filament current 600ma for 6BX4 vs. 450ma for 6X4) TO BUY EF80=6BX6 (Darkvoice 337se, Pearlman mic) TO BUY 6BX7GT Dual Triode TO BUY 6BY5G and 6BY5GA Full-Wave Rectifier TO BUY 6BY6 TO BUY 6BY8 TO BUY 6BY7=EF85 Pentode TO BUY 6BZ6=6JH6 TO BUY 6BZ7=6BQ7A Dual Triode TO BUY 6BZ8 TO BUY 6C4=M8080=CV4058 / 6C4WA Triode (buy M8080=CV4058 for Conrad Johnson) TO BUY 6C5 / 6C5G / 6C5GT Triode (for Gibson EH-100 from 1959) TO BUY 6C6 Pentode TO BUY 6C7 Dual Diode Triode TO BUY 6C8G TO BUY 6C9
6C10=VT-23 Triple Triode (close sub = 6BK11) (Vfil=6.3V @ 600ma, Vplate max per section = 330V) (Pout max per section = 1W) Class A Amplifier: Plate Voltage = 250 V Grid No. 1 Voltage = -2 V Amplification Factor (Mu) = 100 Plate Resistance (approx) = 62.5Kohms Transconductance (Gm) = 1600 Plate Current = 1.2 mA - Fender Super Champ - Super Champ (adamflax.com) - Ampeg Jet modified for 6C10 - Ampeg R-12-RT ~1963 TO BUY 6C10

6C33C-B Power Triode - Almarro A318A - BAT - Einstein - AYON AUDIO SPARK II - Joule Electra Stargate - http://www.taticaudio.com/ (6C33C-B SET AMP) - Navison NVS - 003G Click here to see 6C33C-B NOS 1985 Vplate=120V Vgrid=-37.5V Iplate=120ma Gm=29.8ma/V Mu=7.9 Rp=260ohms TO BUY 6C33C-B
TO BUY 6CA4=EZ81=U709 Full-Wave Rectifier TO BUY 6CA5 TO BUY 6CB5A
TO BUY EL34=6CA7 Power Pentode (Mullard, Telefunken, Amperex, Miniwatt, Siemens, GE, Sylvania)
TO BUY 6CB6A=6CF6 TO BUY 6CD6G TO BUY 6CD6GA TO BUY EM34=6CD7 Tuning Eye TO BUY EM4 Tunging Eye TO BUY EM1 Tuning Eye TO BUY 6CE5=6BC5 TO BUY 6CF6=6CB6A TO BUY 6CG3=6BW3=6CE3 Half-Wave Rectifier (12 pin compactron) TO BUY 6CG7=6FQ7 Dual Triode TO BUY 6CG8A Triode-Pentode TO BUY 6CH3=6DW4B
6CH6=EL821=CV2127 Pentode (6CH6 has similar specs to EL84 with different pinout and higher input sensitivity) TO BUY 6CH6
The ECH81 was designed by Mullard and was used as a "VIDEO OUTPUT PENTODE" with high mutual conductance (Gm), Vfil=6.3V @ 750ma, Vplate MAX = 275V, Pout MAX = 12 watts 6CH6 APPLICATION DATA: --------------------- Class Va Vg2 Vg1 Ia Ig2 Ra Gm A S/E 250 250 -4.5 40 6 50,000 11 This valve was used as the audio output valve in the Rees-Mace receiver AKA the Pye marine receiver AP100339 that was built in the 1950s and extensively used by British and Dutch navies. The question remains as to why the 6CH6 was the valve of choice for this receiver when so many purpose designed audio valves could have been selected. Sources specifically list it as a video amplifier. Note the high value of gm, necessary in order to obtain reasonable gain and power output with wideband signals, and for correct matching of video into coax cable. TV studio equipment racks used to be full of 6CH6s. EL821 PINOUT: ------------ 1: NC, sometimes connected to 9 2: Grid 3: Cathode 4,5: 6.3V Heater 6: NC 7: Plate 8: Screen grid 9: Internal shield and beam plates EL84 PINOUT: ----------- 1: NC (pins 1,6,8 are internally connected) 2: Grid 3: Cathode 4,5: 6.3V Heater 6: NC 7: Plate 8: NC 9: Screen It is NOT a plug-in equivalent for the 6BQ5, but a near equivalent in specs. The bias is different, but it is a 9 pin output tube of about the same output power. Similar to EL84 Mullard, 6BQ5 RCA but much higher quality, longer life and more reliability. It gives crips low distortion audio output and transformers designed for EL84 can use this tube. It is a lot more sensitive, and so needs less input to drive to full power. British made, mil-spec, nice black plates. Good for guitar amps or DIY amp projects. Many people love the sound of this tube over a 6BQ5/EL84.
TO BUY 6CH8 Pentode-Triode
6CJ3=6DW4B Half-Wave Rectifier (6CJ3=6DW4, also see 6DW4 stock listing) - Leben CS 600 - Leben 660P TO BUY 6CJ3

TO BUY 6CK4 Triode TO BUY 6CK6=EL83 (for Decware EL83 amp) Sub for Russian 6P15P-EV TO BUY 6CK6=EL83 (for Decware EL83 amp) Sub for Russian 6P15P-EV TO BUY 6CL3=6CK3 Half-Wave Rectifier TO BUY 6CL5 TO BUY 6CL6=6197=6677 TO BUY 6CL8A TO BUY 6CM3 TO BUY 6CM5=EL36 Pentode TO BUY 6CM6 Tetrode (for Seeburg DS160 1962, Aria WV11 TO BUY 6CM7 Dual Triode TO BUY 6CM8
6CN6=EL38=CV450 Pentode (top cap anode, octal base)(spec sheets available, good tube for audio) (Vplate=800V max, Vplate=8000V! peak pulse)(this tube is not a sub for a EL37, but is built like a EL37) (the EL38 bias is much different and Vplate requirements are much lower, but makes a very good DIY'er tube and they sound very good, customers have reported very good results) (Data as follows: Vf=6.3V, If=1.4A, Va=250V, Ik=100mA, S=14mA/V, Pa=25W) TO BUY EL38=6CN6 Mullard

TO BUY 6CN7 TO BUY 6CQ6=EF92 Pentode (for Little Dot II++ headphone amp) TO BUY 6CR6 TO BUY 6CS6 Heptode
6CS7 Dual Triode Leben CS 600 integrated amp Leben CS 660P power amp TO BUY 6CS7 SYLVANIA BLACK PLATE PAIRS NOS
SYLVANIA SINGLE TUBES: --------------------- 1 tube $12) 6CS7 Sylvania branded RCA used/tests like new "U" getter 1950's 1 tube $10) 6CS7 Sylvania branded RCA used/good "U" getter 1950's 1 tube $15) 6CS7 Sylvania NOS "O" getter halo 1960's 6CS7 RCA 1960's: --------------- TO BUY 6CS7 RCA PAIRS NOS

TO BUY 6CU5 TO BUY 6CU6 TO BUY 6CU8 TO BUY 6CV7=EBC41 Dual-Diode / Triode
6CW4=6DS4 Nuvistor (6DS4 is a 6CW4 with extended cutoff) - Pearl Microphone Lab CT-40 - CJ Premier 6 - Musical Fidelity M3 Nu-Vista Integrated amp - Fisher 500C TO BUY 6CW4
TO BUY 6DS4

6CW5=EL86 Power Amp Pentode (similar to EL84 but NOT a direct replacement, has same pinout but also has higher input sensitivity=requires less negative grid bias than EL84, 6.3V @ 760ma Filament, 12 watts max, around 18 watts PP at 250Vplate and Iplate = 55ma; most are run at 250Vplate or less, mu=8, Rplate=23Kohms) - Jadis preamp TO BUY EL86 Valvo Holland NOS
TO BUY EL86 Philips Mullard NOS

TO BUY ECC84=6CW7 Dual Triode TO BUY 6CX8 TO BUY 6CY5 RF Tetrode TO BUY 6CY7 Dual Triode TO BUY 6CZ5 Beam Power Tube (you cannot sub a 6CZ5 for a 6973, see 6973 for more details) TO BUY 6D4 TO BUY 6D6 Pentode TO BUY 6D7 Pentode TO BUY 6D8G Heptode TO BUY 6D10 Triple Triode (for McIntosh MX110 preamp, Tascam M-520 (solid state conversion) TO BUY 6DA4A=6DM4 Rectifier (6DA4A used in Eddie Current Zana Deux Headphone amp 2007) TO BUY EM81=6DA5 Tuning Eye
TO BUY EF89=6DA6 Telefunken (for Grundig TW 501G 1959, Grundig 3095 ML/USA 1956, Blaupunkt radios)

TO BUY 6DB5 TO BUY 6DC6 TO BUY 6DC8=6AD8=EBF89 TO BUY 6DE4 TO BUY 6DE6
TO BUY 6DE7 (for Woo Audio WA6SE (2008-present)
TO BUY 6DF6 TO BUY 6DG6GT=6W6GT (also see 6W6GT which is a sub for a 6DG6GT) TO BUY 6DG6GT=6W6GT TO BUY EM85=6DH7 Tunging Eye (for Lorenz Goldsuper W25, Grundig 3045W radio 1953) TO BUY ECC88=6DJ8 Dual Triode TO BUY E88CC=6922=CCa Dual Triode TO BUY E188CC=7308 TO BUY 6DK6 Pentode TO BUY 6DL3=6DK3
TO BUY 6DL4=EC88 Triode (Marantz 10B, Bruce Moore)
TO BUY E88C (Triode) (special quality ECC88)

6DL5=EL95 Pentode - Grundig 5060 radio - Grundig SO 190 Ua1 CONSOLE 1962 - Telefunken 5351W radio 1960's TO BUY EL95

TO BUY 6DM4A=6DA4A TO BUY 6DN3=6CM3 TO BUY 6DN6=6CD6G
6DN7 Dual Triode - Bottlehead S.E.X. amp (Headphone amp) - Bottlehead SMACK - CONN organ console amp 1970's 2 channel - MFA Luminence preamp 1990 TO BUY 6DN7

TO BUY 6DQ4 TO BUY 6DQ5 Power Tetrode TO BUY 6DQ6 TO BUY 6DQ6A TO BUY 6DQ6B=6GW6 Beam Power Tube TO BUY 6DR7 Dual Triode TO BUY 6DS4 Nuvistor TO BUY 6DS5 TO BUY 6DT3 TO BUY 6DT5 TO BUY 6DT6A TO BUY 6DT8 TO BUY 6DW4B=6CJ3 TO BUY 6DW5 TO BUY 6DV4 Nuvistor TO BUY 6DX4 TO BUY 6DX8=ECL84 (Shindo Monbrison preamp) TO BUY 6DS4 nuvistor (6DS4=6CW4 with higher cutoff frequency) TO BUY 6DZ4 Triode (6DZ4 is used in Marantz 10B tuner, also see 6AF4A) TO BUY 6DY7 TO BUY 6DZ7
for 6E5 -> 6KZ8 STOCK