Best 12AU7 listed at:

12AU7=ECC82 and Equivalents (click on links below to check stock) 7316=12AU7 Philips / Philips Miniwatt / Amperex Holland 1958-1963 12AU7 Amperex Bugle Boy Long Plates 1950's 12AU7 Amperex Bugle Boy 1960's 12AU7 Philips / Philips Miniwatt / Amperex Holland 1960's - 1970's CV4003=12AU7 Brimar UK 12AU7=CV491 Brimar UK 12AU7 CBS USA 12AU7 Cifte France 12AU7=ECC82 Radiotechnique (RT) France "Long Plates" 12AU7 GE USA B749=12AU7 Genalex Gold Lion UK 12AU7 East Germany (RFT) 12AU7 Hungary (Tungsram) 12AU7 Hitachi / Matsushita / Toshiba JAPAN 12AU7 Ken Rad 1950's 12AU7 Marconi Canada 12AU7 Mazda France 12AU7WA=E82CC=6189 Philips by MAZDA France Chrome Plates 1960's 12AU7 Mullard LONG PLATES 1950's CV4003 Mullard Box Plates 12AU7 Mullard Ribbed Plates 12AU7 Philips Australia 12AU7 Raytheon USA 12AU7 RCA Black Plates 1950's 12AU7 RCA with top getter 1960's 12AU7A RCA Clear Top 1960's 12AU7 Siemens Long Plates West Germany 1950's 12AU7 / E82CC Siemens West Germany 1960-1980 12AU7 Sylvania 1951-1980 ECC802S=12AU7 Telefunken West Germany 12AU7 Telefunken Ribbed Plates 12AU7 Telefunken Smooth Plates 12AU7 Tungsol 12AU7 Valvo West Germany 12AU7 Westinghouse


NEW POLL!
What's the best sounding US- or European-made
12AU7 / 5814A of all time in YOUR opinion?


7316=ECC186=12AU7 Amperex Holland short-plate 1959-1965 (one of the best sounding 12AU7 ever made and very rare, excellent vocal reproduction) (rich textured midrange, 10,000 hour low noise 12AU7 substitute, highly recommended) * 7316 closest subsititute = See ECC82=12AU7 Philips Miniwatt Holland 1965 pairs * - VAC PA100/100 - Wavac pr-t1 preamp - Audio Note M1 preamp - Octave HP500SE (Germany) - VTL TL 7.5 MKII preamp - Audio Note M8 - Rogue Cronus - Concert Fidelity - Audio Valve Eklipse linestage (Ct1 series) (1st series) ------------------------- next best option to a 7316 is a ECC82 Miniwatt: 1 platinum low noise pair $225) ECC82 Philips Miniwatt Holland NOS "o" getter halo 1965 in white boxes (best pair) (similar sound to 7316 Holland) TO BUY 7316 HOLLAND
1 low noise tube $155) 7316 Holland NOS "O" getter halo 1959 rebranded International Servicemaster in "IEC MULLARD" box (gm=1420/1500) (11.2/11.9ma) 1 low noise tube $155) 7316 Amperex Holland large "O" getter halo NOS 1959 redated (60-39=1960) (10.7/11.1ma) (Gm=1385/1410) SINGLE TUBES: (Ct2 series) -------------------------- listed below 1 low noise tube $99) ECC186=7316 Philips Miniwatt used/good D getter halo 1959 mismatched sections (10.8/12.2ma) (Gm=1250/1410) 1962-1963: (Ct5 series) ----------------------- listed below 1 platinum low noise tube $155) ECC186=7316 Amperex Holland NOS 1965 rebranded in 1971 Amperex box smeared printing (ct5 series) (12/12.2ma) (Gm=1515/1530) listed below 1 low noise tube $155) 7316 Amperex PQ Holland large "O" getter halo NOS 1963 in white box (ct5 series) (11.3/12.2ma) (Gm=1445/1535) Sonic Comments on 7316 Amperex Holland: -------------------------------------- "The first thing I noticed was how natural the human voice sounded. Not only do all the instruments sound more like themselves, but I can hear each instrument and voice more clearly separated on that proverbial soundstage. I will never ever be able to go back to "regular" tubes after hearing these." 7316 Holland 1959-1963 reference picture


12AU7 Amperex Bugle Boy Holland "Long Plates" 1956-1959 (reference sounding 12AU7) sold


12AU7 Amperex Bugle Boy Holland 1959-1962 (LARGE ROUND GETTER HALO) (sweet-musical overall sound, good bass, 3 dimensional sound) listed below 1 low noise tube $75) 12AU7 Amperex Bugle Boy Holland used/good 1960-1961 in white box (11.2/11.7ma)


12AU7 Amperex Bugle Boy Holland 1962-1967 (SMALL ROUND GETTER HALO)


12AU7 Amperex / Philips / Philips Miniwatt Holland 1960 - 1972 (lively midrange, sweet sound, good bass, quiet, this is not a dull 12AU7) - Ashdown Little Bastard 2010 - BK Butler Tube Driver - (2nd only to the 7316 Philips Miniwatt Holland and Mullard Holland, listed at top of page) PAIRS: ----- 1 platinum low noise pair $225) ECC82 Philips Miniwatt Holland NOS LARGE "O" getter halo 1962 same date codes in white boxes (best pair) 1 tube) Gm=1430/1440 1 tube) Gm=1440/1450 small buff mark on backside of tube

1 low noise pair $175) ECC82 Philips Holland NOS 1967 same date codes "o" getter halo in original boxes (2nd best pair) 1 tube) 1500/1510 1 tube) 1520/1530 1 low noise pair $165) ECC82 Philips Holland NOS 1969 same date codes "o" getter halo in original boxes (3rd best pair) 1 tube) 1495/1515 1 tube) 1505/1520

SINGLE TUBES ------------ 1 platinum low noise tube $85) 12AX7A Amperex Globe Logo Holland NOS in white box 1968 (Gm=1525/1535) best single 1 Platinum Low Noise tube $79) ECC82=12AU7 Philips Holland NOS 1971 (Gm=1490/1515) 1 Low Noise tube $75) ECC82=2AU7A Philips Holland NOS 1968 (Gm=1430/1480) 1 low noise tube $85) ECC82 Philips Miniwatt Holland NOS "o" getter halo 1965 in white box (Gm=1465/1535)


CV4003=12AU7WA BRIMAR GREAT BRITAIN (Tall narrow ribbed plates) (Balanced and smooth with long life) - Sonny Jr. Four-ten / Customized Harp Amp - Conrad Johnson PV 10AL 1993 CV4003=12AU7 SINGLE TUBES: ------------------------- 1 low noise tube $75) CV4003=12AU7WA Brimar NOS 1960's (Gm=1420/1470) 1 platinum low noise tube $49) CV4003=12AU7WA Brimar used/tests like new narrow ribbed plates 1960's (12/12.4ma) (Gm=1490/1510) good value


12AU7=ECC82=CV491 BRIMAR GREAT BRITAIN (ribbed plates like Mullard) (Balanced and smooth with long life) - Ampeg B200R pre SINGLE TUBES: ------------ 1 platinum low noise tube $99) CV491=12AU7=ECC82 Brimar NOS ribbed plates like Mullard 1971 (Gm=1530/1540) 1 platinum low noise tube $89) CV491=12AU7=ECC82=B329 Brimar NOS narrow ribbed plates 1960's (Gm=1400/1410) 1 platinum low noise tube $79) 12AU7=ECC82 Brimar NOS ribbed plates like Mullard 1960's (Gm=1510/1520) 1 platinum low noise tube $89) 12AU7=ECC82 Brimar NOS narrow ribbed plates large "O" getter halo early 1960's (Gm=1540/1560) 1 low noise tube $75) 12AU7=ECC82 Brimar NOS branded GE 12AU7A ribbed plates like Mullard 1960's (Gm=1450/1490) 1 low noise tube $70) 12AU7=ECC82 Brimar NOS branded GE 12AU7A ribbed plates like Mullard 1960's (Gm=1425/1445) USED: ---- 1 low noise tube $49) 12AU7=ECC82 Brimar used/like new ribbed plates like Mullard 1960's (Gm=1420/1450) 1 tube $40) 12AU7=ECC82 Brimar branded Tronix tall narrow plates used/good 1960 (Gm=1405/1440) 1 tube $45) 12AU7=ECC82 Brimar tall narrow plates used/tests like new 1960 (Gm=1430/1510) 1 tube $35) 12AU7=ECC82 Brimar tall narrow plates used/good 1960 (Gm=1390/1410)


CV4069 Brimar=12AU7 with "flying leads" Type CV4069 made by STC/Brimar of England. Internally, they are identical to the Brimar CV4003=12AU7/ECC82, normal size and shape, but they don't have any pins! Instead, they have nine wire leads. I have read an old spec sheet on these and the story is that they thought these valves were so reliable that they would NEVER need replacing. 21) CV4069=12AU7 Brimar "Black Plates" 1969 NOS (flying leads instead of pins) $50 ea or ($110/matched pair) Click here to see CV4035 and CV4069 BRIMAR FLYING LEADS NOS


12AU7 CBS USA 1950's 1 tube $50) 12AU7A CBS black plates NOS "U" getter halo in white box smeared printing


12AU7 Cifte France
1 low noise tube $60) 12AU7 CIFTE France NOS 1962


12AU7=ECC82 Radiotechnique (RT) France "Long Plates" military grade (French subsidiary of Philips/Mullard) - Unison Research TO BUY 12AU7 RT Long Plates 1950's


12AU7 / 12AU7A GE 1950's - 1970's (also see 5814A, 5963, 6189) - Presonus Studio Channel and Presonus Blue Tube DP preamp - Bravo MATCHED PAIRS: ------------- TO BUY 12AU7A GE
8 low noise pairs $45/pair) 12AU7A GE NOS copper grid posts original boxes 1960's 5-10% matching 1 platinum low noise pair $60) 12AU7A GE NOS (61-35=1961) same date codes original boxes (recommended) 1 tube) Gm=1530/1545 1 tube) Gm=1520/1560 SINGLE TUBES: ------------ 1 tube $60) 12AU7A RCA NOS 1956 large "U" getter halo 1 tube $30) 12AU7A GE NOS 1961 1 tube $40) 6680=12AU7A GE Canada NOS around 1960 1 tube $25) 12AU7A GE Canada NOS large white GE logo and old printing early 1960's 1 tube $10) 12AU7A GE NOS copper grid posts top getter faded OTHER SUBS: ---------- also see 5814A GE Black and Gray Plates listed on the "5814" webpage also see 6189 and 6189W GE listed under "6189"


B749=12AU7 Genalex Gold Lion England NOS sold out


12AU7 East Germany (RFT) (best value) (best sound for the money; low noise, smooth, extended) listed below - good value 3 pairs $45/pair) ECC82 RFT East Germany NOS 1970's (best value) 4 pairs $45/pair) ECC82 RFT East Germany rebranded TESLA 1980's (best value) 12AU7 East Germany (RFT) NOS 1970's - 1980's: --------------------------------------------- 1 platinum low noise tube $20) ECC82 East German branded BRIMAR NOS 1970's (11.8ma/12.1ma) 1 low noise tube $12) ECC82 East German branded BRIMAR NOS 1970's (11.1ma/12.7ma) 1 low noise tube $10) ECC82 East German branded "ECC82" NOS 1980's (11ma/12.2ma)


12AU7 Hungary (Tungsram) (good value) sold out) ECC82 Tungsram Hungary NOS


12AU7 Hitachi JAPAN 1 platinum low noise tube $30) 12AU7 Hitachi JAPAN NOS rebranded IEC Mullard 1969 in white box (13/13.4ma) 1 low noise tube $25) 12AU7 Hitachi JAPAN NOS rebranded IEC Mullard 1968 in white box (11.3/11.6ma) 1 low noise tube $25) 12AU7A Hitachi JAPAN NOS rebranded Raytheon JAPAN ribbed plates plates and copper grid posts 1960's


12AU7 Matsushita JAPAN (good value, 12AU7 Mullard tooling) - FU-50 Amp listed below - good value 1 platinum pair $55) 12AU7A Amperex Globe Logo NOS made by Matsushita JAPAN on Mullard tooling ribbed plates in original boxes 1970's - BEST VALUE 1 tube) Gm=1425/1455 1 tube) Gm=1430/1440 1 platinum pair $55) 12AU7A Amperex Globe Logo NOS made by Matsushita JAPAN on Mullard tooling ribbed plates in original boxes 1970's - BEST VALUE 1 tube) Gm=1480/1510 1 tube) Gm=1450/1465 1 platinum low noise tube $30) 12AU7 Matsushita JAPAN NOS in white box 1960's (Gm=1450/1470) best single 2 tubes listed below 1 platinum low noise tube $25) ECC82 Matsushita JAPAN rebranded RCA ribbed plates NOS 1970's, very good printing (11.9ma/12.2ma) 1 low noise tube $20) ECC82 Matsushita JAPAN rebranded RCA ribbed plates NOS 1970's (11.3ma/11.7ma)


12AU7 Toshiba JAPAN 1 low noise pair $55) 12AU7 Toshiba rebranded Raytheon JAPAN NOS original boxes 1960's 1 low noise tube $45) 12AU7 Toshiba JAPAN "long ribbed plates" and "D" getter NOS made for DAYSTROM NICHIMEN 1950's


12AU7 KEN RAD 0) 12AU7 Ken Rad nickel-chrome plates used/like new "D" getter


12AU7 Marconi Canada 1950's - 1960's sold 12AU7A Marconi Canada NOS 1960's white boxes: -------------------------------------------- 1 low noise tube $35) white printing ribbed plates like 12AU7A RCA clear top 1960's


12AU7 Mazda 1950's sold out


12AU7 PHILIPS by MAZDA (FRANCE) chrome plates - F2a11 triode connected amp made by Kurosawa Lab, Japan 0)


12AU7 / ECC82 / CV491 MULLARD "LONG PLATES" 1955-1959 (smooth detailed sound - great vocal reproduction, superb midrange) - Head-Direct EF1 preamp - Allen & Heath VF-1 compressor - Ray Samuels - Eastern Electric DAC - Lexicon Signature 284 12AU7 Mullard "long plates" 1957 with "SQUARE" getter halo and 2 crossbars across getter halo: SINGLE TUBES: ------------ 1 platinum low noise tube slightly microphonic $150) CV491=12AU7 Mullard BVA NOS "long plates" with "SQUARE" getter halo and 2 crossbars across getter halo (k61-B7A=1957) (13.5/13.7ma) (CV491 printed on backside of tube) 1957-1958: --------- 1 low noise tube $110) 12AU7 Mullard long plates SQUARE getter halo used/good k61-B7L=1957 - NO PRINTING (10.1/10.7ma) (good value) 12AU7 Mullard "long plates" 1958 with "ROUND" getter halo: 0 platinum low noise tube) 12AU7 Mullard "long plates" "O" getter halo (k61-R8I=1958) like new, good printing, old logo and BVA (11.3ma/11.6ma) 0 low noise tube) 12AU7 Mullard "long plates" "O" getter halo (k61-R8L=1958) used/like new, good printing, old logo and BVA (11.1ma / 11.7ma)


CV4003=M8136 MULLARD "KUHL-TUBE" BOX PLATES" 1960's - 1980's (Smooth 12AU7, very refined top-end, excellent in ALL applications where a premium 12AU7 is desired; DACS, linestages, etc., reference quality and highly recommended) Read more about TubeWorld's process here.


CV4003=M8136 MULLARD "BOX PLATES" 1960 - 1983 (detailed and smooth, good high end extension) - Concert Fidelity CF-080LS Hybrid Line Stage Preamplifier - Ampeg SVP-PRO Bass Preamp - Velleman K4000 kit - Audio Note CD2 - ROTH AUDIO MC4 MUSIC COCOON 2009 - Eastern Electric Minimax - Hovland PAIRS 1960's - 1983: ------------------- 1 platinum Kuhl-Tube cryo tube $199) CV4003=M8136=12AU7 Mullard "Box Plates" NOS 1982-1983 with electro-polished pins 1 tube) (Gm=1450/1470) 1 tube) (Gm=1455/1490) sold) CV4003=M8136=12AU7 Mullard "Box Plates" NOS 0 tube) 11.2/11.6ma 1977 (Gm=1540/1570) 0 tube) 11.1/11.5ma 1977 (Gm=1530/1560) sold) CV4003=M8136=12AU7 Mullard "Box Plates" NOS 0 tube) 11.0/11.2ma 1976 (Gm=1520/1530) 0 tube) 10.8/10.9ma 1978 (Gm=1480/1490) SINGLE TUBES: ------------ 1 low noise Kuhl-Tube cryo tube $99) CV4003=M8136=12AU7 Mullard "Box Plates" NOS 1982-1983 (Gm=1460/1470) (best single) 1 low noise Kuhl-Tube cryo tube $75) CV4003=M8136=12AU7 Mullard "Box Plates" NOS 1982-1983 (Gm=1330/1345) 1 low noise Kuhl-Tube cryo tube $99) CV4003=M8136=12AU7 Mullard "Box Plates" NOS 1975-1976 (10.5/11.2ma) (Gm=1470/1555) SINGLE TUBES low noise not cryo-treated: --------------------------------------- 1 tube $65) CV4003=M8136=12AU7 Mullard "Box Plates" NOS no logo 1975 (10.1/12.6ma) 1 tube $75) CV4003=M8136=12AU7 Mullard "Box Plates" NOS no logo 1973 (10.6ma/12.2ma) 1 tube $60) CV4003=M8136=12AU7 Mullard "Box Plates" NOS with logo 1968 (10.2ma/10.9ma) tiny mica flake inside glass


12AU7 / ECC82 / CV491 MULLARD ribbed plates 1960 - 1983 - Unison Research Simply Two Anniversary Integrated amp - Audio Valve Eclipse preamp - Scott Tuner - Cayin MT-45 amp - EAR 834L linestage - Bravo V3 Headphone Amp 12AU7 Mullard NOS "low noise pairs" 1960-1970: --------------------------------------------- 1 low noise pair $140) 12AU7 IEC Mullard NOS 1968-1970 in white boxes 1 tube) Gm=1410/1430 1968-1969 1 tube) Gm=1470/1485 1970 1 low noise pair 150) ECC82=12AU7 Philips by Mullard NOS in white boxes - best pair 1 tube) 1415/1445 1966 1 tube) 1410/1465 1964 1960's SINGLE TUBES: ------------------- listed below 1 platinum low noise tube $135) 12AU7 Mullard "10M MASTER SERIES" NOS 1966 in white box (12.2/12.6ma) (Gm=1420/1440) (best single) sold listed below 1 low noise tube $60) 12AU7A Mullard NOS rebranded GE "o" round getter halo 1966 (11.5ma/12.5ma) (Gm=1340/1420) (recommended) listed below 1 low noise tube $45) ECC82=12AU7 Mullard shield logo used/good - good printing 1969 (Gm=1410/1440) Gf1 series (1961-1962): ---------------------- listed below 1 low noise tube $49) ECC82=12AU7 Eico Mullard used/good 1962 (Gf1 series) (10.5/11.5ma) (Gm=1350/1440) (best value) listed below 1 low noise tube $55) 12AU7 Daystrom Mullard used/good 1962 - very good printing (11.5/12ma) Gm=1400/1450 (good value) listed below 1 low noise tube $29) 12AU7 Mullard branded Philips Miniwatt used/good 1961 (9.8/10.2ma) (Gm=1320/1370) 12AU7 Mullard NOS "low noise pairs" 1970-1975: --------------------------------------------- 1 platinum low noise pair $140) 12AU7 IEC Mullard NOS in IEC boxes 1970 same date codes (recommended) (BEST VALUE) 1 tube) 11.7/12.1ma 1 tube) 11.5/12.3ma 1 platinum low noise pair $129) 12AU7A Mullard NOS (recommended) (BEST VALUE) 1 tube) 11.6/11.7ma branded EL-MENCO white print 1975 1 tube) 11.7/11.8ma branded IEC Mullard smeared white print 1970 1970-1975 SINGLE TUBES: ---------------------- listed below 1 low noise tube $65) ECC82=12AU7 Philips by Mullard NOS 1970 (Gm=1395/1430) 12AU7 MULLARD USED/TESTED, some LIKE NEW: 1 platinum low noise tube $30) ECC82=12AU7 Mullard NOS made in Papesa, Buenos Aires (best value) - same internals as Mullard UK (12.1ma/12.3ma) gf2 series: ---------- listed below 1 low noise pair $85) 12AU7A Mullard branded Amperex Globe Logo orange printing used/test like new - good printing (best value) 1 tube) 1974 (11.9/12.5ma) 1 tube) 1973 (11.8/12.4ma) listed below 1 low noise tube $40) 12AU7A Mullard branded Amperex Globe Logo 1971 orange printing used/test like new - good printing (11.8/12ma) best value


12AU7A Philips Miniwatt Australia 1960's 1 low noise tube $75) 12AU7A Philips Miniwatt Australia tall black plates NOS in Miniwatt box around 1960
12AU7A Philips Miniwatt Australia (SOLD OUT)


12AU7 / 12AU7A Raytheon USA Black Plates 1950's - 1960 sold out) 12AU7A Raytheon NOS black plates - black coated glass - "D" getter halo (1-30=1951) SINGLE TUBES: ------------ 1 low noise tube $40) 12AU7 Raytheon Black Ribbed Plates used/like new 1958, "O" getter halo, very good printing (Gm=1315/1330) 1 low noise tube $50) 12AU7 Raytheon Black Ribbed Plates used/like new 1958, "D" getter halo, very good printing (Gm=1355/1375) 1 low noise tube $65) 12AU7A Raytheon Black Plates like new "D" getter 1957 (Gm=1400/1500) 1 low noise tube $65) 12AU7A Raytheon Pinched Black Plates like 5751 NOS "D" getter (1-30=1951) copper grid posts (Gm=1350/1360) 1 platinum low noise tube $50) 12AU7 Raytheon Black Plates used/like new "D" getter mid-1950's no printing (Gm=1540/1550)


12AU7 / 12AU7A Raytheon USA Gray Plates 1950's - 1960's 2 low noise pairs $135/pair) 12AU7A Raytheon NOS gray plates - black coated glass - "D" getter halo (1-30=1951) in white boxes (recommended) 1 low noise tube $65) 12AU7A Raytheon NOS gray plates - black coated glass - "D" getter halo (1-30=1951) in white box SINGLE TUBES: ------------ 1 tube $60) 12AU7 Raytheon gray ribbed plates "D" getter NOS 1954 (Gm=1460/1525) 1 tube $60) 12AU7 Raytheon gray ribbed plates "D" getter NOS 1956 (Gm=1570/1610) 1 tube $40) JRP-12AU7 Raytheon JAN gray ribbed plates "O" getter NOS 1963 (Gm=1440/1480) 1 platinum tube $45) 12AU7A Raytheon JAN gray ribbed plates "O" getter NOS 1960's (Gm=1450/1460) 1 tube $42) 12AU7A Raytheon JAN gray ribbed plates "O" getter NOS 1960's (Gm=1485/1550) 1 tube $40) 12AU7A Raytheon JAN gray ribbed plates "O" getter NOS 1960's (Gm=1415/1540) 1 low noise tube $35) 12AU7A Raytheon Gray Ribbed Plates NOS 1963 branded DUMONT (Gm=1450/1700)


12AU7/A RCA Black Plates with top getter 1950's (also see 5814A and 6189 RCA black plates; the 5814A RCA sounds fabulous in the Antique Sound Lab KT88 amp) 12AU7: ----- NOS 1950's: ---------- listed below -best value 1 platinum low noise pair $175) 12AU7 RCA NOS tall black ribbed plates mid-1950's "U" getter halo rebranded Westinghouse Reliatron in Westinghouse boxes (best pair) 1 tube) 12.2/12.6ma 1 tube) 12.4/12.8ma listed below 1 low noise tube $110) 12AU7 RCA NOS black plates early 1950's "D" getter halo spot welded to plate post (ACS) date code, white printing (12/13ma) listed below 1 low noise tube $110) 12AU7 RCA NOS black plates 1954 "D" getter halo spot welded to plate post, white printing (12.4/12.8ma)Gm=1440/1470 listed below 1 low noise tube $110) 12AU7 RCA NOS black plates early 1950's "D" getter halo spot welded to plate post (AN) date code, white printing (11.8/12.2ma) Gm=1405/1430 1 low noise tube $75) 12AU7 RCA NOS ribbed black plates early 1951 large-wide "D" getter halo spot-welded to plate post - original box mismatched triode sections (11/13.4ma) - good value USED: ALL WITH "D" GETTER HALO ------------------------------ 1 low noise tube $50) 12AU7 RCA Black Plates used/very good 1950's (11/12ma) 1 low noise tube $40) 12AU7 RCA Black Plates used/good 1950's (9.4/10.2ma) 1 low noise tube $22) 12AU7 RCA Black Plates used 1 section 70% 1 section 80%+ (8/9.8ma)


12AU7/A RCA Gray Plates with top getter 1950's listed below 1 platinum low noise tube $85) 12AU7 RCA tall ribbed plates NOS square getter halo 1954 original box (Gm=1450 and 1465) (recommended)


12AU7A RCA "CLEAR TOP" 1960's - 1970's (the best sounding US made 12AU7A, the 5814A RCA is also good from 1959-1970) (also consider subs 5814A and 6189 RCA) - Cayin MT-35 Integrated amp - Rogue Audio Cronus - Rogue audio Perseus + Rogue audio stereo 90, - Sun Audio 1000 - CJ PV10 - VTL 7.5 Series II - Ampeg - Aguilar DB750 driver tube - Odyssey Kandela preamp - David Berning ZOTL Pre One Audio Preamplifier 12AU7A RCA clear top NOS:(buy 2 pairs receive 5% discount) 1 platinum low noise pair $139) 12AU7A RCA clear top NOS "D" getter halo 1960's in original boxes 1 tube) Gm=1470/1480 MQ date code good printing 1 tube) Gm=1465/1480 MS date code smeared printing 1 platinum low noise pair $139) 12AU7A RCA clear top NOS "D" getter halo 1960's in original boxes, good printing 1 tube) Gm=1430/1450 (MS) date code 1 tube) Gm=1450/1460 (AE) date code 1 platinum low noise pair $139) 12AU7A RCA clear top NOS "D" getter halo 1960's in original boxes, smeared printing 1 tube) Gm=1420/1450 1 tube) Gm=1440/1490 1 platinum low noise pair $139) 12AU7A RCA clear top NOS "D" getter halo 1960's in original boxes 1 tube) Gm=1390/1460 poor printing 1 tube) Gm=1400/1480 good printing 1 platinum low noise pair $135) 12AU7A RCA clear top NOS "D" getter halo 1960's in original boxes 1 tube) Gm=1465/1475 poor printing 1 tube) Gm=1460/1470 poor printing SINGLE TUBES: ------------ 1 platinum low noise tube $70) 12AU7A RCA clear top NOS "D" getter halo copper grid posts 1970 (Gm=1400/1425) 1 platinum low noise tube $60) 12AU7A RCA clear top NOS "O" getter halo 1970's (Gm=1390/1420) 1 platinum low noise tube $50) 12AU7A RCA clear top like new "D" getter halo 1970 copper grid posts (Gm=1460/1500) 1 platinum low noise tube $60) 12AU7A RCA clear top NOS "D" getter halo 1970 copper grid posts (Gm=1410/1460) 1 platinum low noise tube $55) 12AU7A RCA clear top NOS "D" getter halo 1960's (LU) date code (Gm=1460/1500) 1 low noise tube $49) 12AU7A RCA clear top NOS "D" getter halo 1960's (Gm=1320/1390) sold 12AU7A RCA clear top low hours/like new: 12AU7A RCA clear top used/test like new "D" getter halo 1960's in white boxes (best value) (90%+ output = 95-105/50 on tv-7 and 10-13ma per triode section @ Vplate=200V) 1 Pair $89) good value 1 tube) 11.3/11.9ma 1 tube) 11.5/11.7ma SINGLE TUBES: ------------ 1 platinum tube $60) like new 13.2/13.4ma (recommended) 1 platinum tube $55) like new 12.2/12.4ma smeared printing 1964 1 tube $45) 11/11.2ma 12AU7A RCA clear top used/test good: best value 1 tube $25) 10.1/11.5ma 1 tube $25) 10.1/11.2ma 1 tube $25) 10.5/10.9ma 1 tube $30) 10.6/10.6ma 1 tube $30) 10.2/12.1ma listed below 10 for $99 as-is) 12AU7A RCA clear tops used 1960's - no printing, all tubes will test over 75% (best value)


12AU7A RCA MEXICO with "TOP GETTER" (GOOD VALUE) listed below 6 platinum low noise pairs $49/pair) 12AU7A RCA MEXICO NOS "TOP GETTER" original boxes 1970's (best value)


12AU7 SIEMENS GERMANY "Long Plates" 1955-1959 (best sounding 12AU7 Siemens, better than Telefunken in mids and highs) (buy 2 pairs receive 5% discount) "D" getter halo pairs from 1956: ------------------------------- listed below 1 low noise pair $375) ECC82 Siemens Halske "Long Ribbed Plates" LARGE "D" getter halo 1956 same date codes, in white boxes, superb sound (best pair) 1 tube) 12.3/12.6ma 1 tube) 12.5/12.7ma listed below 1 low noise pair $375) ECC82 Siemens Halske "Long Ribbed Plates" LARGE "D" getter halo 1956 same date codes, in white boxes, superb sound (best pair) 1 tube) 12.2/12.7ma 1 tube) 12.2/12.8ma 1 low noise pair $369) ECC82 Siemens Halske "Long Ribbed Plates" LARGE "D" getter halo 1956 same date codes, in white boxes, superb sound 1 tube) 12.5/12.8ma good printing 1 tube) 12.7/12.8ma smeared printing "O" getter halo pairs from 1958: ------------------------------- listed below 1 low noise pair $369) ECC82 Siemens Halske "Long Ribbed Plates" with "O" getter halo 1958, in white boxes, superb sound (P5) 1 tube) 12.4/13.0ma some slight scratching on left side of logo (tube on right) 1 tube) 12.6/13.2ma listed below 1 platinum low noise pair $379) ECC82 Siemens Halske "Long Ribbed Plates" with "O" getter halo 1958, in white boxes, superb sound (best pair with "O" getter halo) (P6) 1 tube) 12.5/12.7ma 1 tube) 12.6/12.8ma SINGLE TUBES: ------------ listed below 1 platinum low noise tube $205) ECC82 Siemens Halske "Long Ribbed Plates" with "O" getter halo 1958 (12.8/13.0ma) (Gm=1690/1700) best single listed below 1 platinum low noise tube $195) ECC82 Siemens Halske "Long Ribbed Plates" with "O" getter halo 1958 (12.1/12.3ma) (Gm=1660/1670) listed below 1 platinum low noise tube $195) ECC82 Siemens Halske "Long Ribbed Plates" LARGE "D" getter halo 1956 in white box (12.2/12.7ma) (Gm=1650/1680) 1 low noise tube $180) ECC82 Siemens Halske "Long Ribbed Plates" with "O" getter halo 1958 (12.4/13.5ma) sold) ECC82 Siemens Halske "Long Ribbed Plates" LARGE "D" getter halo 1956 in white box (13.3/13.5ma) (Gm=1700/1725) listed below 1 Platinum low noise tube $165) ECC82=12AU7 Siemens Germany "long ribbed plates" 1958 rebranded SONOTONE (recommended - best single)


12AU7 / E82CC / 5814A SIEMENS GERMANY (detailed, wide-open sound, quiet, extended highs) - Decware Zbox (Unity Gain Stage) - Audio Note L2 Custom - Response Audio - Bottlehead - Ray Samuels Raptor listed below 1 low noise tube $170) ECC82=12AU7 Siemens "chrome plates" NOS copper grid posts branded Sonotone 1962 original box, partially smeared printing (recommended) 1 Platinum low noise tube $90) E82CC=12AU7 Siemens Germany "triple mica" Ribbed Plates NOS 1971-1972 (12.4/12.9ma) (recommended - best value) listed below PAIRS: E82CC=12AU7 Siemens Low Noise Pairs: (quiet and clear with extended highs) --------------------------------------------------------------------------------- 8 low noise pairs $99/pair) E82CC=12AU7 Siemens NOS triple mica rebranded PHILIPS SQ E82CC 1971-1973 - some in Philips boxes, some in white boxes (BEST VALUE) 1 platinum low noise pairs $125) E82CC=12AU7 Siemens NOS triple mica rebranded VALVO in VALVO boxes 1973 (best pair) 1 tube) Gm=1520/1530 1 tube) Gm=1550/1560 7 Low Noise Pairs $95/pair) E82CC=12AU7 Siemens Special Quality NOS 1980 reboxed and redated in 1986 (BEST VALUE) (2 pairs for $175) (5-10% matching) single tubes $45 1 Platinum Low Noise Pair $125/pair) E82CC=12AU7 Siemens Special Quality NOS 1980 reboxed and redated in 1986 (1-5% matching) (recommended) 1 tube) 12/12ma 1 tube) 12/12.1ma 5814A SIEMENS: ------------- 1 Platinum tube - slightly microphonic $79) 5814A Siemens Germany "long plates" NOS 1962, in metal can, triple mica supports (11.5/11.5ma) - slightly microphonic 5814A Siemens Germany "long plates" NOS 75-80% output, triple mica supports, smeared printing, in white boxes 1 tube $45) mid-1960's 9.2/10.3ma 5814A Siemens long plates 1973 copper grid posts: ------------------------------------------------ 1 platinum low noise tube $90) 5814A Siemens NOS 1973 11.2/11.6ma (recommended single) 5814A Siemens 1980: best value ------------------ E82CC=12AU7WA Siemens "long plates" NOS triple mica in white boxes 1980 (good value) (low noise and microphonics) these tubes are 5814A Siemens from 1980 rebranded "E82CC" 1 Platinum Pair $99) 10.7/11.1ma and 10.5/11ma (best value) 1 tube $50) 12.1/12.9ma 1 tube $40) 10.6/12.5ma Click here to see 5814A Siemens stored in Metal Can Sonic Comments: -------------------- "Got the Siemens 5814A tubes yesterday, tried them today in my CAT preamp and they are TERRIFIC. Sound way better than my CIFTE 6189's, Amperex 12AU7's. They added a whole new level of detail, like when changing output tubes."


12AU7 Sylvania "Black Plates" 1950 - 1961 detailed and smooth sound 1 low noise platinum pair $139) 12AU7 Sylvania "black plates" (126=1951) copper grid posts, "D" getter halo spot-welded to plate post, in white boxes 1 tube) 12.2/12.4ma 1 tube) 12.3/12.5ma 1 low noise platinum pair $139) 12AU7 Sylvania "black plates" (126=1951) copper grid posts, "D" getter halo spot-welded to plate post, in white boxes 1 tube) 11.8/12ma 1 tube) 11.9/12.1ma 1 low noise platinum pair $125) 12AU7 Sylvania "black plates" (126=1951) copper grid posts, "D" getter halo spot-welded to plate post, in white boxes (Printing varies, from factory bulk pack, tubes were dirty and cleaned) SINGLE TUBES: ------------ listed below 1 platinum low noise tube $70) JAN-CHS-12AU7 Sylvania "black plates" (126=1951) copper grid posts, "D" getter halo spot-welded to plate post - reboxed (recommended) printing is very faint on glass JAN-CHS-12AU7 Sylvania "black plates" early 1951 "D" getter halo spot-welded to plate post, in white boxes 1 tube $90) 14.1/14.4ma 1 tube $85) 12/12.2ma 1 tube $70) 12/13.5ma 1 tube $70) 11.8/12.1ma 1 tube $50) 10.9/14.6ma 12AU7 Sylvania "tall ribbed black plates" NOS "o" getter halo branded RAD TEL 1961 in RAD TEL boxes (BEST VALUE) 1 platinum tube $45) 11.1/11.1ma 1 tube $40) 11.2/12ma


12AU7 / 12AU7A SYLVANIA and PHILIPS by Sylvania "Gray Plates" (try a 6189 or 5814A Sylvania as a very good sounding substitute for a 12AU7, for more details on 6189 and 5814A, search on those tube numbers) 1950's - 1960: ------------- 1 low noise tube $50) 12AU7 Sylvania like new, gray plates, very large "D" getter halo, small yellow lightning logo, early 1950's 1 low noise tube $35) 12AU7 Sylvania NOS green print 1960 12AU7A Sylvania NOS 1960's $15 ($40/pair): ---------------------------------------- 6) yellow print (6 for $79) 1) green print 1) red print 1) branded Philips 1 pair $45) 12AU7A Sylvania branded PHILCO in PHILCO STARLITE boxes 1960's (recommended) 2) 12AU7A Sylvania used/test good $8 1) 12AU7A Sylvania NOS misbranded as 12AX7A RCA $10 5814A Sylvania: -------------- see 5814A Sylvania listed on the "5814" webpage, use the search engine 6189/6189W: ---------- 10) 6189=12AU7WA Sylvania NOS 1960's $15 ($35/pair, best in stock) 20) 6189W Sylvania NOS 1970's $11 or $27/matched pair or (10 for $85 unmatched) 20) 6189W Sylvania branded Philips ECG NOS 1980's $11 or $27/matched pair or (10 for $85 unmatched) 8) 6189W=12AU7WA Sylvania JAN 1970's-1980's used/low hours/like new $8 8) 6189 and 6189W Sylvania used/test 60-65% $3 (8 for $2 each as-is)


ECC802S=12AU7 TELEFUNKEN WEST GERMANY to see ECC802S TELEFUNKEN STOCK AND PICTURES

12AU7=ECC82 Telefunken Germany Ribbed Plates (superb sounding 12AU7 and highly recommended) - Jadis JP-800 preamp - Art PRO VLA II comp SINGLE TUBES NOS: ---------------- 1 platinum low noise tube $150) ECC82=12AU7 Telefunken Diamond Bottom ribbed plates NOS good printing (lh=1957) (Gm=1510/1525) (recommended) 1 platinum low noise tube $140) ECC82=12AU7 Telefunken Diamond Bottom ribbed plates NOS good printing 1968 (Gm=1660/1700) (recommended)

12AU7 Telefunken "RIBBED PLATES" used/test very good: 12AU7 Telefunken Diamond Bottom ribbed plates: best value --------------------------------------------- PAIRS: ----- listed below 1 platinum pair $169) 12au7 Telefunken ribbed plates used/test good (recommended) 1 tube) 11.5/11.7ma (1955) (at) date code 1 tube) 11.5/12ma no printing 1950's USED - SINGLE TUBES: ------------------- 1 tube $65) used/good, fair printing (10.5/12.5ma) late 1950's (Gm=1480 and 1650)* 1 tube $59) used/good, good printing (10.3/12.3ma) lg date code = 1963 (Gm=1440 and 1620)* 1 tube $55) used/good, good printing (10.1/12.1ma) sb date code = April, 1959 (Gm=1380 and 1550)* 1 tube $49) used/good, good printing (9.6/11.1ma) lg date code = 1963 (Gm=1360 and 1500)* 1 tube $45) used/good, good printing (9.0/12.8ma) sd date code = June, 1959 (Gm=1280 and 1550)*


12AU7=ECC82 Telefunken Germany Smooth Plates (excellent and recommended - slightly warmer sound than ribbed plates) - Ray Samuels The Emmeline II, B-52 fully balanced Headphone amplifier and full functioning preamplifier - VTL 6.5 preamp - Concert Fidelity CF-080LS Hybrid Line Stage Preamplifier (Japan) - JJ243 preamp (2007 model) 12AU7 Telefunken "SMOOTH PLATES" NOS: sold) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1972 in Telefunken boxes - 1-5% matching (recommended) 1 tube) Gm=1545/1550 1 tube) Gm=1550/1560 sold sold) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1972 in Telefunken boxes - 1-5% matching (recommended) 1 tube) Gm=1560/1580 1 tube) Gm=1570/1580 Kuhl-Tube cryo-treated pairs) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1972 in Telefunken boxes - 1-5% matching (recommended) 1 platinum pair $285) 11.8/12.1ma and 11.9/12.2ma 1 platinum pair $285) 11.9/12.2ma and 12.0/12.3ma 1 platinum pair $285) 12/12.3ma and 12/12.4ma 1 platinum pair $285) 11.6/12.1 and 11.6/12.2ma SINGLE TUBES: ------------ 1 platinum Kuhl-tube cryo $139) 12AU7 Telefunken smooth plates NOS original box, tiny getter flake inside tube (12.3/12.4ma) best value 1 platinum low noise tube $155) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS around 1960 (Gm=1635 and 1665) 1 platinum low noise tube $165) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS (gh) date code = 1962 in Tele box, fair printing (12.5/12.6ma) (Gm=1660/1670) (the older Telefunken 12AU7 printing had the smaller size font, partially smeared printing) 1 low noise tube $140) ECC82=12AU7 Telefunken Diamond Bottom ribbed plates NOS good printing 1968 (Gm=1610/1700) (recommended) 1 platinum low noise tube $89) ECC82=12AU7 Telefunken Diamond Bottom used/tests like new, fair printing, ro=1965, some stains on glass, (12.3/12.6ma)(Gm=1625/1665) good value


12AU7 TUNGSOL 1950's / 12AU7A Tungsol 1960's (excellent 12AU7, probably 2nd to 12AU7A RCA clear top) (recommended; good substitute for 12AU7) PAIRS: ----- 1 pair $149) 12AU7A Tungsol NOS original boxes around 1960 same date codes, partially smeared printing on each tube 1 pair $125) 12AU7A Tungsol NOS 1960's in white boxes, smeared printing on each tube SINGLE TUBES from 1950's with "U" getter halo: --------------------------------------------- 1 platinum tube $65) JTL-12AU7 Tungsol narrow plates "U" getter NOS 1955 in original boxes (12.1ma/12.2ma) bottom mica is tilted down at an angle (BEST VALUE) 1 platinum low noise tube $79) JTL-12AU7 Tungsol narrow plates "U" getter NOS 1956 in white box (11ma/11.2ma) 1 platinum low noise tube $75) 12AU7 Tungsol narrow plates NOS "U" getter halo mid-1950's in original box 1 low noise tube $75) 12AU7A Tungsol narrow plates NOS "U" getter halo 1959 in white box, very good printing 1 platinum low noise tube $65) 12AU7 Tungsol wide plates NOS "U" getter halo 1959 in white box, smeared printing 1 low noise tube $49) 12AU7A Tungsol narrow plates used/good 1950's in white box SINGLE TUBES from 1960's with "o" getter halo (wide ribbed plates): ------------------------------------------------------------------ 1 platinum low noise tube $70) 12AU7A Tungsol NOS 1960's partailly smeared printing 1 platinum low noise tube $70) 12AU7A Tungsol NOS 1963 in white box, fair printing 1 low noise pair $125) 12AU7A Tungsol branded as Motorola NOS early 1960's orange printing (recommended) 1 tube) 1 tube)


12AU7 Valvo West Germany 1956 - 1960 1 platinum tube $99) ECC82=12AU7 Valvo Germany rebranded Philips Miniwatt ribbed plates used/like new (D9H=1959) small "O" getter halo, very good printing, in Philips box (recommended) (11/11.5ma)


12AU7 Westinghouse 1950's - 1960's 12AU7 Westinghouse black plates listed below - construction similar to RCA black plates BLACK PLATES: ------------ listed below 1 low noise pair $175) 12AU7 RCA rebranded Westinghouse USA NOS Black Plates large "U" getter halo 1950's (recommended) 1 tube) 12.2/12.6ma 1 tube) 12.4/12.8ma 1 low noise platinum 1% tube $85) JAN-CWL-12AU7 Westinghouse USA NOS Black Plates "D" getter halo 1960 (best single) (12ma/12ma) (same style black plates as RCA) 1 low noise $75) 12AU7A Westinghouse USA NOS Black Plates "U" getter halo 1950's 1 low noise $65) 12AU7A Westinghouse USA NOS Black Plates "O" getter halo around 1960 GRAY PLATES: ----------- 3 low noise pairs $75/pair) 12AU7A Westinghouse Canada gray ribbed plates NOS early-1960's (recommended pairs, best 12AU7 for the money) (plates similar to RCA clear top) 1 low noise tube $75) 12AU7 Westinghouse NOS "Gray Plates" with "D" getter 1954


12AU7 Yugoslavia (EI) 2 low noise tubes $10 each) 12AU7 EI-Yugo (Telefunken copy) smooth plates branded Siemens used/good 1992 1) 9.9ma/10.5ma 1) 10.5/11.5ma