4,800+ results for quad
- VINTAGE SANSUI 4 CHANNEL QUAD UNIT MODEL#QR-6500 NO PLUG NOT TESTED RESTORE NROpens in a new window or tabPre-OwnedPHP 7,371.92whitealbum1968 (3,241) 100%13 bids · Time left6h 50m left (Today 07:05 PM)+PHP 18,043.14 postagefrom United States
- matched quad EL84 6BQ5 Telefunken tubes diamond round plateOpens in a new window or tabPre-OwnedPHP 1,061.33Top-rated sellerTop-rated seller9 bids · Time left2d 16h left (Wed, 04:22 AM)audiotubes_de (11,298) 100%+PHP 745.80 postagefrom Germany
- Matched Quad Of Sylvania 5881Opens in a new window or tabPre-OwnedPHP 5,736.91iutl4172 (88) 97.6%+PHP 1,021.17 postagefrom United States
- 6CA7 Matsushita EL34 Mullard toolings TV-7D tested strong and matched quadOpens in a new window or tabPre-OwnedPHP 13,768.57Top-rated sellerTop-rated sellerfrankleeeb (579) 99.4%+PHP 745.80 postagefrom Hong Kong
- Matched Quad 4x 6P14P / EL84 / 6BQ5 Vacuum Pentode Tubes.Tested.Reflector.1980'sOpens in a new window or tabPre-OwnedPHP 631.06scarabaeusua (994) 100%+PHP 516.32 postagefrom UkraineFree returns31 watchers
- Closely Matched Quad of Sylvania 6SN7GTB NOS NIB Vacuum TubesOpens in a new window or tabBrand NewPHP 14,342.26tubetroniks (5,643) 100%+PHP 2,007.92 postagefrom United States
- Strong Testing Quad Of 12AX7 Audio Tubes Mesa, National, Groove Tube, BehringerOpens in a new window or tabPre-OwnedPHP 1,144.51gobig4303 (539) 100%0 bids · Time left17h 14m left (Mon, 05:28 AM)+PHP 1,957.43 postagefrom United States
- 4pcs 6P14P-K Matched Quad Gold Grid tube EL84 6BQ5 StrongOpens in a new window or tabPre-OwnedPHP 1,227.12Top-rated sellerTop-rated sellerhfvhfparts (9,963) 99.4%Free International Shippingfrom UkraineAlmost gone149 watchers
- Quad Set (4) 7591 Tube Early Japanese Made Tested GoodOpens in a new window or tabNew (Other)PHP 11,473.812a3 (10,691) 100%+PHP 1,147.38 postagefrom United States
- 2c4c matched quad Svetlana black plates tubes NOS OTK 60's 2a3 2s4s ( 300B AD1 )Opens in a new window or tabBrand NewPHP 34,421.43Top-rated sellerTop-rated sellerbesttubesound (776) 100%+PHP 1,434.23 postagefrom Kazakhstan5 watchers
- Matched Quad (4) Amperex/Philips EL84/6BQ5 O-Getter Holland 1963 StrongOpens in a new window or tabPHP 12,908.04Top-rated sellerTop-rated sellerap1278 (2,117) 100%+PHP 1,135.91 postagefrom United States
- 4pcs 6P14P Matched Quad Gold Grid tube EL84 6BQ5 StrongOpens in a new window or tabPre-OwnedPHP 1,141.64Top-rated sellerTop-rated sellerhfvhfparts (9,963) 99.4%Free International Shippingfrom Ukraine385 watchers
- New Listing1 Matched Quad Shuguang WE6CA7 Vacuum tube AMP HIFI DIY 6CA7 6CA7-Z 6CA7-TOpens in a new window or tabBrand NewPHP 15,316.96Top-rated sellerTop-rated sellerhappydiy998 (6,526) 99.5%Free International Shippingfrom China
- QUAD MATCHED GE 6201 (12AT7) AUDIO VACUUM TUBES TESTED VINTAGE 5.10335.COpens in a new window or tabPHP 4,873.50Top-rated sellerTop-rated sellertubes4less (4,287) 99.8%+PHP 1,491.60 postagefrom United States
- RCA 6SN7 GT TUBE 1950s LEGENDARY GRAY SMOKE WINGED MICA TOP PERFECT MATCHED QUADOpens in a new window or tabPre-OwnedPHP 16,597.44top_shelf_valves (1,095) 100%Was: PHP 22,130.11 25% off+PHP 2,785.27 postagefrom United States
- QUAD GE 5814A Red Tip AUDIO AMPLIFIER VACUUM TUBES Tested Strong USA 5.3469-DOpens in a new window or tabPHP 7,168.26Top-rated sellerTop-rated sellertubes4less (4,287) 99.8%+PHP 1,491.60 postagefrom United States
- 6L6GC Toshiba Japan tubes tested strong and matched quadOpens in a new window or tabPre-OwnedPHP 11,014.86Top-rated sellerTop-rated sellerfrankleeeb (579) 99.4%+PHP 458.95 postagefrom Hong Kong
- 4x 6P3S = 6L6 6L6GT 6L6GC 5881 Tetrode Tube FOTON Soviet MATCHED QUAD 1954 NEWOpens in a new window or tabNew (Other)PHP 4,015.26Top-rated sellerTop-rated sellerzorolan (1,910) 100%+PHP 315.53 postagefrom Ukraine
- 4pcs New 6P14P Matched Quad Gold Grid tube EL84 6BQ5 7189 NOSOpens in a new window or tabBrand NewPHP 1,835.81Top-rated sellerTop-rated sellerhfvhfparts (9,963) 99.4%+PHP 688.43 postagefrom Ukraine64 watchers
- QUAD Control Unit Type QC IIOpens in a new window or tabParts OnlyPHP 5,163.21harrypj (2,080) 100%+PHP 9,592.11 postagefrom United States
- International Service Master KT88 NOS Disc Getter Tube Quad (with 1985 receipt)Opens in a new window or tabBrand NewPHP 17,497.56Top-rated sellerTop-rated sellerhamandhifi (23,924) 100%+PHP 5,462.68 postagefrom United States24 watchers
- Dynaco Quadaptor QD-1 Dynaquad Balance Stereo Quad Adapter with BOXOpens in a new window or tabPre-OwnedPHP 2,581.61hamiltonstation (4,617) 100%0 bids · Time left4h 46m left (Today 05:00 PM)+PHP 3,859.79 postagefrom United States
- 4 NOS tubes Valvo ECL86 = 6GW8 CV8297 quad Hamburg plantOpens in a new window or tabNew (Other)PHP 12,047.50Top-rated sellerTop-rated selleraudiotubes_de (11,298) 100%+PHP 745.80 postagefrom Germany
- VINTAGE QUAD GE ECC83 12AX7A AMP TUBES DATE MATCHEDOpens in a new window or tabPre-OwnedPHP 5,736.91natharri-7769 (139) 100%+PHP 3,706.04 postagefrom United States
- NOS Date Matched QUAD RCA 6SN7GTB Vacuum Tubes D Getters Black Plate New In BoxOpens in a new window or tabBrand NewPHP 22,947.05qtubes (639) 100%+PHP 2,096.84 postagefrom United States
- Quad of Amperex (HP label) 6DJ8 ECC88 1969 Holland Vacuum TubesOpens in a new window or tabPre-OwnedPHP 8,605.36tubetroniks (5,643) 100%+PHP 1,434.23 postagefrom United States
- EL84 / 6BQ5 / 7189 Telam / Polam Tubes NOS Matched QuadOpens in a new window or tabBrand NewPHP 2,868.45doctor044 (288) 98.6%+PHP 573.69 postagefrom Ukraine2 watchers
- NEW 4pcs 6N7S MATCHED QUAD Tube NOS 6N7G 6N7GTOpens in a new window or tabBrand NewPHP 628.19Top-rated sellerTop-rated sellerhfvhfparts (9,963) 99.4%+PHP 401.58 postagefrom Ukraine6 watchers
- QUAD MATCHED GE JG-5814A (12AU7 SUB) AUDIO VACUUM TUBES TESTED VINTAGE 8.10352.COpens in a new window or tabPHP 5,160.35Top-rated sellerTop-rated sellertubes4less (4,287) 99.8%+PHP 1,032.64 postagefrom United States
- NICE LITTLE QUAD OF AMPEREX 6DJ8/ECC88 1960's BUGLE BOYS.Opens in a new window or tabPre-OwnedPHP 4,015.26chicken_or_egg (45) 100%+PHP 11,870.80 postagefrom United States
- QUAD NOS MATCHED SYLVANIA 6CS7 AUDIO VACUUM TUBES Black Plates TESTED 7.10418.COpens in a new window or tabPHP 6,881.42Top-rated sellerTop-rated sellertubes4less (4,287) 99.8%+PHP 1,032.64 postagefrom United States
- GREAT QUAD OF NOS 1960'S AMPEREX 6DJ8/ECC88 BUGLE BOYSOpens in a new window or tabPre-OwnedPHP 4,588.95chicken_or_egg (45) 100%+PHP 11,870.80 postagefrom United States
- 6X5 RCA NOS NIB Metal Audio Receiver Rectifier Vacuum Tubes Tested QuadOpens in a new window or tabBrand NewPHP 1,548.39Top-rated sellerTop-rated sellerchukv (15,157) 99.8%+PHP 2,096.84 postagefrom United States
- Toyo 8 Track Quad Player Qaudio Vintage 1971, Rare quadraphonicOpens in a new window or tabParts OnlyPHP 3,441.57moon_boggles (2,243) 98.3%+PHP 15,918.77 postagefrom United States11 watchers
- EL84 Tungsram NOS matched quad tubes same date codes #2Opens in a new window or tabBrand NewPHP 10,039.58tamas074 (128) 100%+PHP 860.54 postagefrom Hungary
- Quad 66 TUNER FOR PARTSOpens in a new window or tabParts OnlyPHP 1,434.23lmgunggoll66 (1,436) 100%1 bid · Time left5d 17h left (Sat, 05:19 AM)PHP 4,302.68Buy It Now+PHP 5,921.06 postagefrom United States
- 6L6GC Toshiba Black plate side OO getter tested strong and matched quadOpens in a new window or tabPre-OwnedPHP 6,884.29Top-rated sellerTop-rated sellerfrankleeeb (579) 99.4%+PHP 401.58 postagefrom Hong Kong
- 4x 6P3S = 6L6 6L6GT 6L6GC 5881 Tetrode Tube Reflector MATCHED QUAD 1970-80's NEWOpens in a new window or tabNew (Other)PHP 3,269.46Top-rated sellerTop-rated sellerzorolan (1,910) 100%+PHP 315.53 postagefrom Ukraine37 watchers
- QUAD MATCHED SYLVANIA 6CG7 (6FQ7) AUDIO VACUUM TUBES TESTED VINTAGE 4.10535.COpens in a new window or tabPHP 4,299.81Top-rated sellerTop-rated sellertubes4less (4,287) 99.8%+PHP 1,032.64 postagefrom United States
- BAKER'S QUAD: 5 MATCHED & BALANCED AMPEREX 6DJ8/ECC88'S FOR THE PRICE OF FOUR!Opens in a new window or tabPre-OwnedPHP 5,679.54chicken_or_egg (45) 100%+PHP 11,870.80 postagefrom United States
- EL34B 6CA7 / Matched Quad / ShuGuang / Vacuum Tube/Valve Amplifier/ Original BoxOpens in a new window or tabBrand NewPHP 5,047.90Top-rated sellerTop-rated sellerkt88_6550 (633) 97.7%Free International Shippingfrom China2 watchers
- New Listing4 NOS Philips ⊿ BugleBoy WhiteLbl Amperex 6DJ8 ECC88 Quad ~ HolyGrail MusicalityOpens in a new window or tabNew (Other)PHP 25,758.71Top-rated sellerTop-rated sellercaliacoustics (583) 100%Free International Shippingfrom United States
- New ListingQUAD RCA CLEAR TOP 12AU7A TUBES ALL TESTED 0VER 100% 12AU7Opens in a new window or tabPre-OwnedPHP 2,839.77bandit35 (8,737) 100%+PHP 1,978.09 postagefrom United States
- Matched Quad Svetlana EL-34/6CA7 TubesOpens in a new window or tabNew (Other)PHP 2,409.50video_general (3,679) 100%8 bids · Time left7d 8h left (05/12, 08:59 PM)+PHP 3,671.62 postagefrom United States
- New 4x Mullard EL34 | Matched Quad / Quartet / Four Tubes | Free ShipOpens in a new window or tabBrand NewPHP 9,749.87tonaltubescom (8,228) 100%+PHP 1,803.68 postagefrom United StatesLast one50 watchers
- Matched Quad TESLA EL84 / 6BQ5 / 7189 / 6P14P. Vacuum Pentode Tubes.Tested.Opens in a new window or tabPre-OwnedPHP 2,294.76scarabaeusua (994) 100%+PHP 516.32 postagefrom UkraineFree returns10 watchers
- Matched Quad 4x 6P14P-K / EL84 / 6BQ5 Pentode Tubes.Tested.Reflector.Gold grid.Opens in a new window or tabMatched Quad 6P14P-K / EL84 / 6BQ5Pre-OwnedPHP 717.11scarabaeusua (994) 100%+PHP 513.45 postagefrom UkraineFree returns135 watchers
- 4pcs New 6P14P-EV Matched Quad Gold Grid tube EL84 6BQ5 7189 NOSOpens in a new window or tabBrand NewPHP 4,302.68Top-rated sellerTop-rated sellerhfvhfparts (9,963) 99.4%+PHP 860.54 postagefrom UkraineAlmost gone151 watchers
- Matched Quad EL84 / 6BQ5 / 7189 / 6P14P. Vacuum Pentode Tubes.TELAM.Poland.TEST.Opens in a new window or tabPre-OwnedPHP 2,065.29scarabaeusua (994) 100%+PHP 573.69 postagefrom UkraineFree returnsLast one47 watchers
- New ListingQUAD RCA CLEAR TOP 12AU7A TUBES ALL TESTED 0VER 100% 12AU7Opens in a new window or tabPre-OwnedPHP 2,839.77bandit35 (8,737) 100%+PHP 1,978.09 postagefrom United States
- Quad of Telefunken Black Diamond EL34Opens in a new window or tabPHP 17,199.24tubedepot (4,694) 100%+PHP 2,204.12 postagefrom United States9 watchers
- RCA 6L6 vintage quad tube (5881)Opens in a new window or tabPre-OwnedPHP 3,901.10Top-rated sellerTop-rated sellerabula101f3pf (1,896) 99.5%+PHP 860.54 postagefrom Taiwan
- Strong Testing Quad Of Black Plate 5Z3 Rectifier Tubes (2) Sylvania (2) Ken-RadOpens in a new window or tabPre-OwnedPHP 570.82gobig4303 (539) 100%0 bids · Time left16h 18m left (Mon, 04:33 AM)+PHP 2,112.33 postagefrom United States
- New 4x Electro Harmonix EL34 | Matched Quad / Quartet / Four Tubes | Free ShipOpens in a new window or tabBrand NewPHP 7,245.71tonaltubescom (8,228) 100%+PHP 1,738.28 postagefrom United States
- 4X 6P14P Reflector USSR 6BQ5 = EL84 MATCHED QUAD / NOS / Same date / Red markingOpens in a new window or tabNew (Other)PHP 2,065.29vintelec777_3 (1,671) 100%+PHP 573.69 postagefrom Ukraine10 watchers
- Strong Matched QUAD ( 0% tol.) 6P15P-ER /EL83/SV83/ TUBES Long Live. GOLD GRID!!Opens in a new window or tabNew (Other)PHP 3,155.30Top-rated sellerTop-rated sellervaltek_2005 (16,194) 100%+PHP 631.06 postagefrom Romania19 watchers
- Matched quad 6N2P Voskhod ~( 6Н2П 12AX ECC83 ) Soviet Vintage tube tested 4pcsOpens in a new window or tabNew (Other)PHP 504.85sermykha94 (6) 100%Was: PHP 631.06 20% off+PHP 573.69 postagefrom Ukraine
- 4x 6J1P-EV / 6ZH1P-EV MATCHED QUAD EF95 / 6AK5 / 6F32 / Military / NOSOpens in a new window or tabNew (Other)PHP 785.96vintelec777_3 (1,671) 100%+PHP 533.53 postagefrom Ukraine27 watchers
- Realistic 6L6GC Vacuum Tubes... Black Plates......Match Quad... Japan MadeOpens in a new window or tabPre-OwnedPHP 6,881.42musicallan_lee (4,303) 100%+PHP 3,514.43 postagefrom United States
- 6CA7 Matsushita EL34 Mullard toolings TV-7D tested strong quadOpens in a new window or tabPre-OwnedPHP 12,621.19Top-rated sellerTop-rated sellerfrankleeeb (579) 99.4%+PHP 458.95 postagefrom Hong Kong
- Quad of Amperex JAN 7308 E188CC Gold Pin 1967 Vacuum Tubes - 9% matchedOpens in a new window or tabPre-OwnedPHP 20,079.17tubetroniks (5,643) 100%+PHP 1,663.70 postagefrom United States
- Telefunken EL84 6BQ5 N709 Tested NOS Matched Quad Super RareOpens in a new window or tabPre-OwnedPHP 16,350.18raretubestore (258) 98.8%+PHP 1,643.62 postagefrom Vietnam
- Matched Quad 6CS7 RCA NOS Vacuum Tubes, Leben CS-600/CS-660P, TV7 Test within 9%Opens in a new window or tabBrand NewPHP 8,602.49bobvcs (8,746) 100%+PHP 857.67 postagefrom United States
- 6GA4 Toshiba triode tubes TV-7D tested strong quadOpens in a new window or tabPre-OwnedPHP 6,769.55Top-rated sellerTop-rated sellerfrankleeeb (579) 99.4%+PHP 458.95 postagefrom Hong Kong
- Vintage QUAD 303 Stereo Power Amplifier sound fabulous 110-120VOpens in a new window or tabPre-OwnedPHP 14,915.95Top-rated sellerTop-rated sellerlittlepomponette (1,665) 100%+PHP 10,039.58 postagefrom Canada
- 10 x 74132PC Tungsram Quad 2-Input Schmitt Trigger NAND Gate IC 74S132PC 74LS132Opens in a new window or tabNew (Other)PHP 458.38Top-rated sellerTop-rated sellerlzet_electronics (19,075) 99.7%+PHP 457.81 postagefrom Bulgaria
- 4 x 6sn7gta GE Tubes*Strong Testing Quad*1950's*#4Opens in a new window or tabPre-OwnedPHP 3,441.57Top-rated sellerTop-rated sellerfng2u (6,710) 99.7%+PHP 1,032.64 postagefrom United States
- Mullard Amperex 7189 EL84 6BQ5 KM1 Vintage 1972 NOS Tube Quad (very strong)Opens in a new window or tabBrand NewPHP 19,792.32Top-rated sellerTop-rated sellerhamandhifi (23,924) 100%+PHP 2,108.31 postagefrom United States34 watchers
- Quad NOS Marconi Triode 50 Vacuum Tubes Tested Excellent In Original BoxesOpens in a new window or tabBrand NewPHP 114,738.11mono (4,219) 100%+PHP 6,607.19 postagefrom United States
- QUAD MATCHED SYLVANIA 6189 12AU7 AUDIO VACUUM TUBES TESTED VINTAGE 5.10333.COpens in a new window or tabPHP 5,160.35Top-rated sellerTop-rated sellertubes4less (4,287) 99.8%+PHP 1,032.64 postagefrom United States
- QUAD NOS MATCHED SYLVANIA 6JB6 SWEEPS VACUUM TUBES TESTED VINTAGE H.10300.COpens in a new window or tabPHP 11,470.94Top-rated sellerTop-rated sellertubes4less (4,287) 99.8%+PHP 1,491.60 postagefrom United States
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