Tube Quad

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Mullard Platinum Factory Matched QUAD EL-34 EL34 6CA7 tubes  NEW

Mullard Platinum Factory Matched QUAD EL-34 EL34 6CA7 tubes NEW: $83.75


Mullard Platinum Factory
4 Genalex Gold Lion KT77 EL34 Reissue Matched Tube Quad -Brand New Box Free Ship

4 Genalex Gold Lion KT77 EL34 Reissue Matched Tube Quad -Brand New Box Free Ship: $149.99


4 Genalex Gold
Mullard QUAD 4x NEW NIB  12ax7 ECC83 Long plates tubes - New

Mullard QUAD 4x NEW NIB 12ax7 ECC83 Long plates tubes - New: $67.75


Mullard QUAD 4x
Tung-Sol Factory Platinum Matched QUAD  NEW NIB 5881 (6l6 type) tubes FOUR

Tung-Sol Factory Platinum Matched QUAD NEW NIB 5881 (6l6 type) tubes FOUR: $79.95


Tung-Sol Factory Platinum
Electro-Harmonix QUAD FOUR NEW  12AX7 12AX7EH Tubes

Electro-Harmonix QUAD FOUR NEW 12AX7 12AX7EH Tubes: $51.95


Electro-Harmonix QUAD FOUR
Mullard Platinum Factory Matched QUAD New NIB KT88 KT-88 Tubes 24hr Burn-in

Mullard Platinum Factory Matched QUAD New NIB KT88 KT-88 Tubes 24hr Burn-in: $149.95


Mullard Platinum Factory
QUAD FOUR Matched Balanced Russian  6N8S 6SN7  double triode TUBE  NEW NOS

QUAD FOUR Matched Balanced Russian 6N8S 6SN7 double triode TUBE NEW NOS: $31.45


QUAD FOUR Matched
4 Each Quad Set RCA 807 Vacuum Tube

4 Each Quad Set RCA 807 Vacuum Tube: $69.99


4 Each Quad
Quad of JJ EL34 Power Vacuum Tube

Quad of JJ EL34 Power Vacuum Tube: $55.92


Quad of JJ
NEW NESSTONE EL34 **QUAD** Tubes Sweet Tone 6CA7 Valves Tested Tightly Matched

NEW NESSTONE EL34 **QUAD** Tubes Sweet Tone 6CA7 Valves Tested Tightly Matched: $43.99


NEW NESSTONE EL34
FOUR QUAD 6N1P-EV  6DJ8 ECC88 6922 RUSSIAN NOS Vacuum Tube Matched and Balanced

FOUR QUAD 6N1P-EV 6DJ8 ECC88 6922 RUSSIAN NOS Vacuum Tube Matched and Balanced: $32.95


FOUR QUAD 6N1P-EV
Four QUAD Factory Platinum Matched Mullard EL84 EL-84 Tubes 24Hr Burn-in NEW

Four QUAD Factory Platinum Matched Mullard EL84 EL-84 Tubes 24Hr Burn-in NEW: $64.95


Four QUAD Factory
Quad of Electro-Harmonix 6CA7 EH Power Vacuum Tube

Quad of Electro-Harmonix 6CA7 EH Power Vacuum Tube: $79.92


Quad of Electro-Harmonix
NEW -- FACTORY Matched QUAD of JJ 7591 7591S power tubes

NEW -- FACTORY Matched QUAD of JJ 7591 7591S power tubes: $65.91


NEW -- FACTORY
Quad of JJ 6L6GC Power Vacuum Tube

Quad of JJ 6L6GC Power Vacuum Tube: $69.92


Quad of JJ
Tube amp power transformer combo for quad 6V6 or 6BQ5EL84 amp

Tube amp power transformer combo for quad 6V6 or 6BQ5EL84 amp: $29.99


Tube amp power
Matched Quad Sylvania 6BQ5 EL84 Power Tubes

Matched Quad Sylvania 6BQ5 EL84 Power Tubes: $99.99


Matched Quad Sylvania
RCA Jan 6SN7 VT 231 black tube matched quad

RCA Jan 6SN7 VT 231 black tube matched quad: $399.00


RCA Jan 6SN7
Factory Platinum Matched QUAD Genalex Gold Lion EL84 EL-84 Tubes 24hr Burn-in

Factory Platinum Matched QUAD Genalex Gold Lion EL84 EL-84 Tubes 24hr Burn-in: $95.95


Factory Platinum Matched
Matched Quad RCA 6SN7GTB Audio Tubes USA 1960's

Matched Quad RCA 6SN7GTB Audio Tubes USA 1960's: $60.00


Matched Quad RCA
*45-Matched Quad (4) RCA #45 Audio Output Tubes- TV-7 Tested NR

*45-Matched Quad (4) RCA #45 Audio Output Tubes- TV-7 Tested NR: $22.27


*45-Matched Quad (4)
Matched Quad (4) of Vintage Sylvania 6V6GT Tubes! TEST VERY STRONG NO RESERVE!

Matched Quad (4) of Vintage Sylvania 6V6GT Tubes! TEST VERY STRONG NO RESERVE!: $0.99


Matched Quad (4)
TUNG-SOL QUAD 12AU7W ECC82 6189 12AU7 Four New Tested Tubes

TUNG-SOL QUAD 12AU7W ECC82 6189 12AU7 Four New Tested Tubes: $67.95


TUNG-SOL QUAD 12AU7W
Genalex New QUAD Gold Lion NIB 12AX7 ECC83 B759 Tubes Gold Pins

Genalex New QUAD Gold Lion NIB 12AX7 ECC83 B759 Tubes Gold Pins: $126.95


Genalex New QUAD
*EL-346CA7 MULLARD DYNACO -GT.Britain Matched Quad Audio Tubes –TV-7 Tested NR

*EL-346CA7 MULLARD DYNACO -GT.Britain Matched Quad Audio Tubes –TV-7 Tested NR: $142.00


*EL-346CA7 MULLARD DYNACO
*7199- Matched Quad General Electric 7199 Audio Tubes -NIB NOS- TV-7 Tested NR

*7199- Matched Quad General Electric 7199 Audio Tubes -NIB NOS- TV-7 Tested NR: $44.00


*7199- Matched Quad
Factory Matched Quad KT88 6550 RAM Industries For Tube Amplifiers TV-7bu Tested

Factory Matched Quad KT88 6550 RAM Industries For Tube Amplifiers TV-7bu Tested: $220.00


Factory Matched Quad
Quad of Electro-Harmonix EL34 EH Power Vacuum Tube

Quad of Electro-Harmonix EL34 EH Power Vacuum Tube: $59.92


Quad of Electro-Harmonix
Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88  6550 Vacuum Tubes

Brand New Matched Quad (4) Genalex Gold Lion Reissue KT88 6550 Vacuum Tubes: $192.16


Brand New Matched
NOS Sovtek 6L6WXT MATCHED QUAD Power Tube 6L6 Valve

NOS Sovtek 6L6WXT MATCHED QUAD Power Tube 6L6 Valve: $54.99


NOS Sovtek 6L6WXT
Quad of JJ EL84  6BQ5 Power Vacuum Tube

Quad of JJ EL84 6BQ5 Power Vacuum Tube: $39.92


Quad of JJ
MATCHED QUAD NOS NIB RCA  5881 6L6 TYPE TUBES - SUPERB

MATCHED QUAD NOS NIB RCA 5881 6L6 TYPE TUBES - SUPERB: $229.00


MATCHED QUAD NOS
Vacuum Tube - KT66 Valve Art Apex Matched Quad Power Tube

Vacuum Tube - KT66 Valve Art Apex Matched Quad Power Tube: $141.92


Vacuum Tube -
*6L6-G Matched Quad (4) RCA Early Smoked Glass Audio Tubes - TV-7 Tested NR

*6L6-G Matched Quad (4) RCA Early Smoked Glass Audio Tubes - TV-7 Tested NR: $24.50


*6L6-G Matched Quad
6550 R MATCHED QUAD NEW (4 tubes) GROOVE TUBES FENDER MADE  RUSSIA BIN $65 KT88

6550 R MATCHED QUAD NEW (4 tubes) GROOVE TUBES FENDER MADE RUSSIA BIN $65 KT88: $65.00


6550 R MATCHED
*ECC8312AX77025-Matched Quad SYLVANIA Audio Tubes NIB NOS –TV-7 Tested NR

*ECC8312AX77025-Matched Quad SYLVANIA Audio Tubes NIB NOS –TV-7 Tested NR: $25.50


*ECC8312AX77025-Matched Quad SYLVANIA
NEW - Quad JJTesla EL84 vacuum tube valve

NEW - Quad JJTesla EL84 vacuum tube valve: $48.39


NEW - Quad
Genalex New Quad Platinum Matched Gold Lion NIB 12AU7 ECC82 B749 Tubes Gold Pins

Genalex New Quad Platinum Matched Gold Lion NIB 12AU7 ECC82 B749 Tubes Gold Pins: $135.95


Genalex New Quad
Matched Quad (4) of Vintage RCA 6V6GTA Tubes! TEST VERY STRONG NO RESERVE!

Matched Quad (4) of Vintage RCA 6V6GTA Tubes! TEST VERY STRONG NO RESERVE!: $14.50


Matched Quad (4)
4 AMPEREX EL846BQ5 D GETTER MATCHED QUAD TUBES

4 AMPEREX EL846BQ5 D GETTER MATCHED QUAD TUBES: $200.00


4 AMPEREX EL846BQ5
Quad of JJ E34L  EL34 Power Vacuum Tube

Quad of JJ E34L EL34 Power Vacuum Tube: $55.92


Quad of JJ
Matched Quad Mullard KT88 Reissue tubes Brand NEW in Box !!!

Matched Quad Mullard KT88 Reissue tubes Brand NEW in Box !!!: $136.79


Matched Quad Mullard
QUAD Four Factory Platinum Matched Tung-Sol EL84 EL-84 Tubes 24Hr Burn-in NEW

QUAD Four Factory Platinum Matched Tung-Sol EL84 EL-84 Tubes 24Hr Burn-in NEW: $56.95


QUAD Four Factory
Quad of Sovtek 5881  6L6WGC Power Vacuum Tube

Quad of Sovtek 5881 6L6WGC Power Vacuum Tube: $59.92


Quad of Sovtek
6BQ5 EL84 Amperex identical matched quad1959 strong tubes D getter my #401

6BQ5 EL84 Amperex identical matched quad1959 strong tubes D getter my #401: $195.00


6BQ5 EL84 Amperex
*6V6GT- Matched Quad (4) RAYTHEON 6V6GT- Audio Output Tubes -TV-7 Tested NR

*6V6GT- Matched Quad (4) RAYTHEON 6V6GT- Audio Output Tubes -TV-7 Tested NR: $19.99


*6V6GT- Matched Quad
Rare NOS Quad western electric Vt52 45 Special 2a3 tube Tested NOS

Rare NOS Quad western electric Vt52 45 Special 2a3 tube Tested NOS: $1,995.00


Rare NOS Quad
Matched Quad Genalex Gold Lion KT88 tubes Reissue BRAND NEW in Box

Matched Quad Genalex Gold Lion KT88 tubes Reissue BRAND NEW in Box: $170.99


Matched Quad Genalex
Quad Baldwin Raytheon 12AU7 Vacuum Tubes same lot matched set tested on Triplett

Quad Baldwin Raytheon 12AU7 Vacuum Tubes same lot matched set tested on Triplett: $40.00


Quad Baldwin Raytheon
QUAD (4) JJ (CZECH) EL34-6CA7 OUTPUT TUBES -ALL TEST GOOD  -APPROX 12-13 YRS OLD

QUAD (4) JJ (CZECH) EL34-6CA7 OUTPUT TUBES -ALL TEST GOOD -APPROX 12-13 YRS OLD: $0.99


QUAD (4) JJ
NOS QUAD Telefunken 12AX7 ECC83 Smooth Plate Tube's West Germany Diamond Bottom

NOS QUAD Telefunken 12AX7 ECC83 Smooth Plate Tube's West Germany Diamond Bottom: $495.00


NOS QUAD Telefunken
Factory Platinum Matched QUAD Svetlana 6L6GC  SV6L6GC 6L6 amp tubes 24hr burnin

Factory Platinum Matched QUAD Svetlana 6L6GC SV6L6GC 6L6 amp tubes 24hr burnin: $91.95


Factory Platinum Matched
1960's Telefunken ECC8312AX7  Smooth Plate Tubes Low Noise Matching Quad

1960's Telefunken ECC8312AX7 Smooth Plate Tubes Low Noise Matching Quad: $198.00


1960's Telefunken ECC8312AX7
Quad Set of Tubular NOS Mytron 5U4GB Rectifier Vacuum Tubes

Quad Set of Tubular NOS Mytron 5U4GB Rectifier Vacuum Tubes: $14.99


Quad Set of
NOS Electro Harmonix Quad (4) EL34 EH. Tested and matched tubes valves

NOS Electro Harmonix Quad (4) EL34 EH. Tested and matched tubes valves: $44.99


NOS Electro Harmonix
Set of Four Quad Vintage Tung Sol 6550 Tubes Tested on Computerized Curve Tracer

Set of Four Quad Vintage Tung Sol 6550 Tubes Tested on Computerized Curve Tracer: $479.99


Set of Four
4 McINTOSH 7591 MATCHED QUAD TUBES with LOW HOURS OF USAGE

4 McINTOSH 7591 MATCHED QUAD TUBES with LOW HOURS OF USAGE: $375.00


4 McINTOSH 7591
Quad of Sylvania 7189 Black Plate Vacuum Tubes - Test NOS

Quad of Sylvania 7189 Black Plate Vacuum Tubes - Test NOS: $200.00


Quad of Sylvania
New 4x Tung-Sol EL34B  EL34  Matched Quad  Quartet  Four Tubes  Free Ship

New 4x Tung-Sol EL34B EL34 Matched Quad Quartet Four Tubes Free Ship: $93.99


New 4x Tung-Sol
4 x 6SN7gtb RCA Tubes *Black Plates*D-Getter* Very Strong Matched Quad*

4 x 6SN7gtb RCA Tubes *Black Plates*D-Getter* Very Strong Matched Quad*: $79.99


4 x 6SN7gtb
NEW NESSTONE 6L6GC Matched **QUAD** Tubes 6L6 5881 Valves-Sweet Tube Tone-Tested

NEW NESSTONE 6L6GC Matched **QUAD** Tubes 6L6 5881 Valves-Sweet Tube Tone-Tested: $46.99


NEW NESSTONE 6L6GC
Tung-Sol Platinum Factory Matched QUAD 6L6G 6L6 6L6GC Big Bulb Tube 24hr Burn-in

Tung-Sol Platinum Factory Matched QUAD 6L6G 6L6 6L6GC Big Bulb Tube 24hr Burn-in: $166.75


Tung-Sol Platinum Factory
NEW Tube Amp Doctor TAD 6L6GC-STR 6L6 Matched Quad Tube

NEW Tube Amp Doctor TAD 6L6GC-STR 6L6 Matched Quad Tube: $69.95


NEW Tube Amp
Rare Date Matched Quad RCA 45 Tubes ST Type For Amplifier 345 245

Rare Date Matched Quad RCA 45 Tubes ST Type For Amplifier 345 245: $325.00


Rare Date Matched
New 4x Sovtek 5881  6L6WGC  6L6  Matched Quad  Quartet  Four  Power Tubes

New 4x Sovtek 5881 6L6WGC 6L6 Matched Quad Quartet Four Power Tubes: $68.99


New 4x Sovtek
NIB new matched quad (lot of 4) 12AX7 12AX7B  ECC83  7025 vacuum tubes

NIB new matched quad (lot of 4) 12AX7 12AX7B ECC83 7025 vacuum tubes: $27.99


NIB new matched