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We will be CLOSED FROM JULY 10, and out of the office with limited access to email and will re-open JuLY 31, 2019, and all shipping will resume then.”… Just a Friendly reminder to please remember that when you purchase your tubes, (07/10/2019 - 7/31/2019) we are CLOSED.

FREE SHIPPING within the USA on SELECT ITEMS!

On SELECT DOMESTIC orders of $99 or more within the USA ... Simply look for the "FreeShipping" logo to enjoy free shipping on selected items throughout the store. You pay no domestic shipping if the items in your order qualify for 'Free Domestic Shipping'!




NOS 1960 AMPEREX 6922 P.Q. E88CC USA GOLDPIN MATCHED PAIR TUBES AMPLITREX TESTED NOS U.S.NAVY 1943 RCA CRC-6SN7 GT black-plate black-glass MATCHED PAIR
$549.95
$479.95
$449.95
$298.00
$298.00
You save $151.95!
NOS 1960 AMPEREX 6922 P.Q. E88CC USA GOLDPIN MATCHED PAIR TUBES AMPLITREX TESTED NOS U.S.NAVY 1943 RCA CRC-6SN7 GT black-plate black-glass MATCHED PAIR
NOS 1960's AMPEREX 6922 P.Q. E88CC USA GOLDPIN MATCHED PAIR TUBES AMPLITREX TESTED U.S.NAVY CRC-6SN7-GT 1950'S LOW-NOISE BLACK PLATE PAIR with "D" Getters
EF86 6267 VALVO W.GERMANY for U67 VOX AC 15 AC30H2 DR.Z TUBE "CREAM OF THE CROP" NOS PHILIPS 6550 / KT-88 matched QUAD MADE IN U.S.A.
$149.95
$75.00
$75.00
You save $74.95!
$1,499.95
$1,099.95
$1,099.95
You save $400.00!
EF86 6267 VALVO W.GERMANY for U67 VOX AC 15 AC30H2 DR.Z TUBE NOS PHILIPS 6550 / KT-88 matched QUAD MADE IN U.S.A.
EF86 6267 VALVO W.GERMANY for U67 VOX AC 15 AC30H2 DR.Z TUBE NOS 1970's PHILIPS-ECG BRANDED TUNG-SOL 6550A / KT-88 matched QUAD MADE IN U.S.A.

PHILIPS ECG Tung-Sol 6550, plate with 3 holes version (PRECEDED by the plates without holes version).

O
nly Tung-Sol made ST shaped 6550, and sold to other manufacturers and merchants with a black plastic base under the metal, who rebranded (most common: RCA, GE, SERVICE-MASTER, AND PHILIPS ECG).

Appears to be v
ery late 1970's production TUNG-SOL 6550 made just prior to TUNG-SOL closing down their Newark, NJ plant, they do have PHILIPS ECG branding on the quad.

NEW NEVER USED - GREAT TEST MEASUREMENTS

SUPERIOR METAL BASE POWER TUBES

THREE (3) GETTER RINGS FOR SUPERIOR PERFORMANCE


CLEAR, SOLID, LONG-LIFE POWER TUBES

LASTS 4 to 5 times longer than Russian or Chinese KT-88's

MATCHED QUAD:

TESTED AT FULL 500 VOLTS on the AMPLITREX AT-1000 TUBE TEST SYSTEM.

58.2mA (104%) 6,950 GM (107%)
58.1mA (104%) 6,900 GM (107%)
58.0mA (104%) 6,800 GM (106%)
58.0mA (104%) 6,800 GM (106%)

LIQUID midrange, SOLID bass, MADE IN USA, AMERICA’s BEST 6550A second to no USA made tube, superior to Svetlana or Sovtek 6550.


- ARC VT60, ARC VT100 MarkII and MarkIII, Ref. 300, Ref. 600

- Audio Research Reference 3 line-stage power supply

- Luxman

- Rogue

- Cary

- VTL MB300, MB450, ST-150

- CJ Premier 8 and 11A, 12

- Jadis

- Ampeg SVT

- Comins Alessandro Jazz Guitar Amp

- Cary SLI-80

- Octave V40SE


- THD

- VAC PA100/100

- McIntosh 275 MK IV 2005

- Harmon Kardon

- Audio Aero Capitole Integrated amp
Telefunken < > Diamond ECC83 / 12AX7 Smooth Platinum Low Noise QUAD NOS 1961 Telefunken 12AT7 ECC81 CODE-MATCHED 45° GETTER DIAMOND AMPLITREX TESTED
$998.00
$548.00
$349.00
$149.95
$149.95
You save $199.05!
Telefunken < > Diamond ECC83 / 12AX7 Smooth Platinum Low Noise QUAD NOS 1961 Telefunken 12AT7 ECC81 CODE-MATCHED 45° GETTER DIAMOND AMPLITREX TESTED
Telefunken < > Diamond ECC83 / 12AX7 Smooth Platinum QUAD NOS 1961 Telefunken 12AT7 ECC81 CODE-MATCHED 45° GETTER DIAMOND AMPLITREX TESTED



Today's Super Deal!

NOS TELEFUNKEN 6AK5 5654 6AK5W < > Tube

$70.00
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NOS TELEFUNKEN 6AK5 5654 6AK5W < >Tubes for Little Dot headphone amp MK IV 3 4 +
NOS TELEFUNKEN 6AK5 5654 6AK5W < >Tubes for Little Dot headphone amp MK IV 3 4 +


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New Products

NOS SIEMENS HALSKE E84L 6BQ5 EL84 7320 PAIR
$189.00
U.S.NAVY CRC-6SN7-GT 1950'S LOW-NOISE BLACK PLATE
$340.00
Tung-Sol 6SN7 GT MATCHED PAIR NOS "T" triangular p
6GH8A AMPEREX La Radiotechnique France
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Telefunken ECC82 12AU7 low-noise perfect pair