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Groove Tubes GT-KT88 Matched Power Tubes H-9 Duet NIB

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$50.00
1 bid

Gold Lion KT88 Cryo Treated Matched Quad 6550

The item is listed as a Top Rated Plus item
One-day shipping available
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$219.99
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PLATINUM Matched Quad Genalex Gold Lion GEC NEW NIB KT88/6550 tubes

The item is listed as a Top Rated Plus item
One-day shipping available
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$179.99
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Vintage Collector Quality Matched Pair of General Electric GE 6550A / KT88 Tubes

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$399.95
0 bids
$599.95
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NEW 4x Genalex Gold Lion KT88 GEC 6550 Power Vacuum Tubes, Matched Quad TESTED

The item is listed as a Top Rated Plus item
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$175.95
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4x NEW Genalex Gold Lion KT88 GEC 6550 Power Vacuum Tubes, Matched Quad TESTED

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$183.90
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Genalex KT88 blue label triple getter date code SLZ looks new tests new

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$225.00
1 bid

KT120 tubes (6550/KT88) Tung-Sol matched quad CRYO treated platinum

The item is listed as a Top Rated Plus item
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$199.90
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Free shipping

KT88 Electro Harmonix 4 Matched + Cryo Vacuum Tubes

The item is listed as a Top Rated Plus item
One-day shipping available
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$169.99
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Re-Issue Gold Lion KT88 Octet+2

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$250.00
0 bids
$480.00
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electro harmonix kt-88 tubes

electro harmonix kt-88 tubes

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$320.00
or Best Offer
Free shipping

Tung Sol KT120 Cryo Matched Pair - 6550 / KT88

The item is listed as a Top Rated Plus item
One-day shipping available
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$99.99
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4 Tung-Sol 6550 KT88 Vintage Tubes U.S.A. 3-Hole Version Excellent Sound!

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$152.50
6 bids

NEW 2x Genalex Gold Lion KT88 GEC 6550 Power Vacuum Tubes Matched Pair TESTED

The item is listed as a Top Rated Plus item
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$91.25
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4x NEW Electro Harmonix KT88 EH Vacuum Tubes, Matched Quad TESTED

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$109.00
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1 x 6550 / KT88 TUNG-SOL BEAM PENTODE POWER TUBE * TESTED *

From Australia
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$29.99
1 bid

Tung Sol KT120 Cryo Matched Quad - 6550 / KT88

The item is listed as a Top Rated Plus item
One-day shipping available
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$189.99
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NOS Quad KT88 Factory-Matched Audio Output Vacuum Tubes Shuguang

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$77.77
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Genalex 6550 KT88 Black Plate

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$525.00
0 bids

6550 Tung-Sol reissue tubes matched quad CRYO treated KT88

The item is listed as a Top Rated Plus item
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$169.99
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Free shipping

NEW 4x Electro Harmonix KT88 EH Power Vacuum Tubes, Matched Quad Four TESTED

The item is listed as a Top Rated Plus item
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$105.50
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Vintage Genalex KT88 Vacuum Tube Original Box Tested Strong!!!!!

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$54.00
9 bids

Matched 1 Quad STC 12E1 VC345 tubes Similar KT88

From Taiwan
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$95.00
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SHUGUANG KT88-98 KT88 6550 NEW PLATINUM MATCH QUAD

FREE SHIPPING WORLDWIDE
From Taiwan
The item is listed as a Top Rated Plus item
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$149.99
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4PCS 8 PIN PCB MOUNT SILVER CERAMICS VACCUM TUBE SOCKET FOR 6L6 EL34 KT88 6550

From China
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$5.99
0 bids
Free shipping

Matched Quads (4 tubes) Sovtek KT88 amp power tubes, BRAND NEW

The item is listed as a Top Rated Plus item
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$108.99
or Best Offer

KT88 Golden Gate Cryo Matched Quad

The item is listed as a Top Rated Plus item
One-day shipping available
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$159.99
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4pc Gilded 8pin Ceramic vacuum tube socket mount gold valve base EL34 KT88 6550

From China
The item is listed as a Top Rated Plus item
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$9.99
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Free shipping

4x NEW JJ Tesla KT88 Vacuum Tubes, Matched Quad TESTED

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$156.50
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4PCS VACCUM TUBE SOCKET SAVER SHIELD FOR SHUGUANG KT88 AUDIO tube amp DIY parts

From China
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$6.99
0 bids
Free shipping

4x NEW Electro Harmonix 6550 EH =KT88 Power Vacuum Tubes, Matched Quad TESTED

The item is listed as a Top Rated Plus item
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$104.95
or Best Offer

Matched Quads (4 tubes) Sovtek KT88 NOS tubes, BRAND NEW in Boxes !

The item is listed as a Top Rated Plus item
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$108.99
or Best Offer

2pcs EL34 KT88 274B 8 Pin Amplifier CD Player Ceramic PCB TUBE SOCKET Holder,8PS

From China
The item is listed as a Top Rated Plus item
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$0.90
0 bids

Newly listedTwo, Tung Sol 6550, vintage US made, black plate, matching pair, KT88, 6L6

Matched for gain and plate current- black, solid plates
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$574.95
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KT88 JJ Cryo Treated Matched Pair

The item is listed as a Top Rated Plus item
One-day shipping available
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$85.99
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Newly listed8pcs 8pin long PCB Ceramic vacuum tube sockets valve base fr EL34 KT88 6550 6SN7

From China
The item is listed as a Top Rated Plus item
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$12.99
0 bids
Free shipping

PLATINUM Matched Eight Genalex Gold Lion GEC NEW NIB KT88/6550 tubes

The item is listed as a Top Rated Plus item
One-day shipping available
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$359.99
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NEW 2x Electro Harmonix KT88 EH Power Vacuum Tubes Matched Pair TESTED Two Tubes

The item is listed as a Top Rated Plus item
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$50.25
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8pc 8pin PCB Ceramic vacuum tube sockets octal valve base fr EL34 KT88 6550 amps

From China
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$12.99
0 bids
Free shipping

KT88 QUAD VALVE ART TUBES CRYO TREATED "STUNNING IMPROVEMENT" !

The item is listed as a Top Rated Plus item
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$169.90
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2x NEW JJ Tesla KT88 Vacuum Tubes, Matched Pair TESTED

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$78.35
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GEC KT88,tested,emission 145mA

From Germany
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$240.00
0 bids

KT90 EH Cryo Matched Pair Vacuum Tubes KT88 6550

The item is listed as a Top Rated Plus item
One-day shipping available
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$89.99
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Gold Lion KT88 Cryo Treated Matched Pair

The item is listed as a Top Rated Plus item
One-day shipping available
 Time left:
$109.99
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Newly listedx 2 x EL34 KT88 274B 6550A 8 PIN TUBE Ceramic SOCKET

From Israel
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$0.89
0 bids
$4.82
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Brand NEW Russian KT88 "Winged C" SED Svetlana

From Russian Federation
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$64.99
or Best Offer

2x NEW JJ Tesla KT88 Blue Glass Vacuum Tubes, Matched Pair TESTED

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$87.25
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Newly listedGEC 12E1 =CV345,UK made ,the best 12E1/CV345,Audio tubes,similar KT66,KT88

From Taiwan
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$69.00
0 bids

NEW Sextet (6x) ElectroHarmonix KT88 Platinum Matched Vacuum tube Valves EH 6550

The item is listed as a Top Rated Plus item
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$165.00
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Pair of vintage GEC KT88 tubes valves test Strong

From United Kingdom
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$323.88
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Top Rated Plus
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