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$9.99
New Listing2 Raytheon type 45 tubes. AT1000 test at low end of good range. Engraved Base
$9.90
QUAD OF SIEMENS CCa E88CC 6922 Gold Pins LOW TEST
$79.95
Matched Pair Sylvania USA 12AX7A / 7025 Low-Noise Tubes Test NOS & Balanced
$80.00
RCA 6072 Triple Mica Black Plate Low Noise Tubes Matching Pair 12AY7 Test Used
$39.99
New Listing1 Excellent Sounding tested low 10000 hour rca red base 5692 / 6SN7 tube #FD37
$18.99
1960's RCA 12AX7A ECC83 7025 SINGLE SHORT-PLATE TUBE MUSEUM AMPLITREX TESTED
$80.00
New Listing1950's RCA 5963 Black Plate Preamp Tubes Low Noise Test NOS Quad
$45.00
General Electric 6SN7GTA Matching Pair Low Noise Preamp Tubes Pair GE Test NOS 2
$24.99
2 x 12au7 Tung-Sol Tubes*Black Glass*Low/Uneven Test*#7
$49.00
NATIONAL UNION Black Glass 6SN7GT Grey Glass Tubes Test Low
$5.12 to $14.99
5pcs Glass Pyrex Borosilicate Rimmed Test Blowing Tubes Borosilicate Lab 8 Size
$15.99
2 x 6J5g G.E. Tubes *Black Plates *Low Testing*
$115.20
12SX7GT Mil Spec NOS Tube Low Noise Matched Triodes Gray Smoke Glass
$270.00
E88CC / ECC88 Red Tip ULTRA LOW NOISE RARE SpecialQuality 6922 NOS Tube Brimar
$119.99
(2) NOS Tung Sol 5881 Beam Power Tubes Test GOOD! Audio Hi Fi
$35.00
Misc Makes 6SL7 Vacuum Tubes Amplitrex Tested 68% (Low) to 106% (Strong)
$9.95
1929 TRIAD T-01A VINTAGE GLOBE TUBE - COOL ORIGINAL STICKER! - LOW TEST DISPLAY
$99.00
2 MATCHED Pair 1972 Vintage Mullard 7025 Low-Noise 12AX7 ECC83 TEST GOOD
$49.00
RCA 6SN7GT Grey Glass Tubes Test Low
$25.00
GE & RCA 12AX7 Vacuum Tubes Amplitrex Tested 81/75% (Medium) 68/68% (Low)
$35.00
Pair GE USAF 5814A Low Noise Preamp Tube Amplitrex Tested Strong
$24.30
1- 5670 2C51 AUDIO TUBE RARE *YELLOW TIP* Premium Low Noise D Getters
$7.88
10mL Plastic Test Tubes, 10 Pack Frozen Container Storage Clear Screw Cap, Clear
$40.00
Valvo 12AU7/ECC82 Long Plate Big Foil D-Getter DW k6R 1956 Germany Low Testing
$199.98
NOS 1940s NOS RCA 2A3 BLACK-PLATE DOUBLE-D Getter AMPLITREX TESTED 5,155 GM 106%
$17.99
2 x 5687 G.E. Tubes *Black Plates*Low Testing*
$290.00
LOT OF 7 6L6GC Tubes - RCA, SYL, LOW, DUM…All Test Good Mixed Lot - RoeTested
$23.99
2 - #47 Cunningham Tubes *Low Testing Pair*
$63.00
1 NOS MULLARD UBC81 SINGLE-TUBE BLACKBURN U.K. RARE SILVER-MESH-CAGE TUBE
$39.00
6P7S/6BG6G/G-807) MATCHED PAIR TESTED WITH ROETEST V10 FOTON TUBES 1964!!!
$143.10
Pair Bendix 5993 TT-10 Rare SPECIAL Yellow Blue Tip (ultra low noise) Old Stock
$159.00
2 NOS 1960 TUNG-SOL 5687 17.5mm BLACK PLATE PAIR D-Getter Ring for Audio Note 🎵
$27.99
2 x 12AX7 CBS Tubes*Long Plates - O ****Low Testing***READ****
$40.00
Telefunken Used 6267 Low Testing Vacuum Tubes (2) Not Original Boxes
$39.99
2 - Type 45 Tung-Sol Tubes*Low Testing Pair*Hot stamped Base*
$70.00
Seven 45 ST Tubes "Test Low" RCA Tung-Sol Sylvania
$19.49
No type 6A8G so-so low test lot 5 radio audio amplifier vacuum tubes valves 6A8
$250.00
TELEFUNKEN 12AU7 ECC82 Matching Pair Low Noise Smooth Plates Tubes Test NOS
$120.00
1 NOS 1960 TUNG-SOL 5687 17.5mm BLACK PLATE PAIR D-Getter Ring for Audio Note
$89.99
5751 RCA Command black plate/low noise rods MaxiPreamp2/TV-7 Tested (1) tube lot
$29.99
Low Testing Matching Pair of 5881 (6L6WGB) Vacuum Tubes D Getters Tung Sol
$24.99
2 x JAN-CRP-6414 Raytheon Tubes*Black Plates*3-Mica*Low Testing*#4
$8.99
No 5881 so-so low test radio amplifier vintage electron audio vacuum tube valve
$44.44
RCA 6AN8 TUBE AMPLITREX PRECISION TESTED TUBE for DYNA MKIII 1960s O-GETTERS
$19.99
1 Excellent sounding but test low amperex foil D getter 12au7 tube #F36
$30.00
Siemens 12AX7/ECC83 Long Plate Dual Post O-Getter Germany mC6 1959 Low Testing
$33.93
New Gain Tested Electro-Harmonix 7025 (low noise 12AX7) Vacuum Tube
$16.99
1 - 12AT7/ECC81 Amperex Tube *Low Testing*Foil D Getter*1956*
$0.99
GE 7x7 Vacuum Tube Tested 75%GM Low and 100/100% Emission
$17.99
Vintage Sylvania 7591 Vacuum Tube Low Testing
$9.00
6V6 Lot of 3 Low testing tubes.
$12.99
1 x 6CG7(6FQ7) RCA-Raytheon Tube*Black Plates*Low/Uneven Testing*(6 Available)
$99.99
1961 NOS MULLARD ECH83 6DS8 ECH81 6AJ8 MATCHED PAIR TUBES 2 TUBES PER BID
$20.00
Sylvania Lot of Three 6BL8 ECF80 Vacuum Tubes Tested as Shown Low First Test
$39.00
Matched quad NOS New Old Stock GE 6CK4 Amplifier Tubes Hickok tested strong
$50.00
RCA 6072 tube, low noise, low microphonics, ruggedized, Etracer tested used!!
$5.50
5963 National vacuum tube (low noise 12AU7 sub) NOS Tested GOOD on Hickok 539B
$10.00
Vintage 1954 Tung-Sol black plate 12BZ7 tube, Etracer tested GOOD/LOW!!
$150.00
KNIGHT KIT KG-600B TUBE TESTER, TIGHT TUBE SOCKETS LOW MILES SHOWN TESTING TUBES
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