Primarily a miniature power pentode designed for TV/Video. Also has some use in ham radio (YAESU COLLINS KENWOOD DRAKE) and hi-fi like Harman Kardon Citation amps.
Quantity in Stock : 50 pcs
Price : US$11.00/each; US$24.00/matched pair
General Electric 12BY7A / 12BV7 / 12DQ7
Primarily a miniature power pentode designed for TV/Video. Also has some use in ham radio (YAESU COLLINS KENWOOD DRAKE) and hi-fi like Harman Kardon Citation amps.
Quantity in Stock : 50 pcs
Price : US$11.00/each; US$24.00/matched pair
PHILIPS SQ - SIEMENS - VALVO E80F / 6084
A pentode with gold pins designed for audio amplifier use. Being an alternative to EF86, this tube has a life longer than 10K hours. The tubes in stock have Philips SQ, Philips Miniwatt SQ, Siemens and Valvo labels, but all made by Heerlen factory in Holland.
Quantity in Stock : 44 pcs
Price : US$ 35.00/each ; US$ 75.00/matched pair
TELEFUNKEN AD1
Mono plate triode, made by Telefunken-Germany in the 1930's. Called the "Queen of the European Triodes", the AD1 seems to be a sort of 4-volt version of the 2A3. We have 1 piece only in NOS and pristine condition. For such an archaic tube tested very strong on the tester Taylor 45C where the GM 5.00mA/v = 100%.
Price : US$ 990,00
TUNGSRAM AD1
Mono plate triode, made by Tungsram-Hungary in the 1940's. Called the "Queen of the European Triodes", the AD1 seems to be a sort of 4-volt version of the 2A3. We have 4 pcs in NOS and pristine condition with original boxes. All tested excellent on the tester Taylor 45C where the GM 5.00mA/v = 100%.
Prices :
Tube-1: US$ 669,00
Tube-2: US$ 690,00
Tube-3: US$ 690,00
Tube-4: US$ 690,00
Marconi MWT B65 / 6SN7GT Metal Base
Extremely rare British tube, especially in such a pristine condition. These military spec tubes were made by Marconi's Wireless Telegraph Co. Ltd. Chelmsford England (MWT) in 1950's and packed in 1966. One of the audiophile legends!
Quantity in Stock : 13 pcs
Price : US$ 820,00/each ; US$ 1690,00/matched pair
SYLVANIA VT-25A / 10Y Singles
VT-25A/10Y is one of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. These Sylvania singles have identical internals with Long Anode Plate w/Oxide Coated Filament, single bottom getter.
Tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
Va = 250v
Vg = 18,5v
Vh = 7,2v
Ia = 10,0mA (corresponding to 100%)
Test scores are labeled on the bases.
Prices :
Tube -1 @ US$ 135,00
Tube -2 @ US$ 89,00
SYLVANIA VT-25A / 10Y Pairs
SYLVANIA VT-25A / 10Y Matched Pairs
VT-25A/10Y is one of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. These Sylvania pairs have identical internals with Long Anode Plate w/Oxide Coated Filament, single bottom getter.
Tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
VT-25A/10Y is one of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. These Sylvania pairs have identical internals with Long Anode Plate w/Oxide Coated Filament, single bottom getter.
Tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
Va = 250v
Vg = 18,5v
Vh = 7,2v
Ia = 10,0mA (corresponding to 100%)
Test scores are labeled on the bases.
 |
| Matched Pair-1 @ US$ 299,00 |
 |
| Matched Pair-1 Test Data |
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| Matched Pair-2 @ US$ 299,00 |
 |
| Matched Pair-2 Test Data |
SYLVANIA VT-25 / 10 Pairs
SYLVANIA VT-25 / 10 Pairs
VT-25/10 is one of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. These Sylvania pairs have identical internals and are Thoriated Tungsten Filament type with the warm bring glow that looks really stunning in any audio amplifier. Tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
VT-25/10 is one of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. These Sylvania pairs have identical internals and are Thoriated Tungsten Filament type with the warm bring glow that looks really stunning in any audio amplifier. Tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
Va = 250v
Vg = 18,5v
Vh = 7,2v
Ia = 10,0mA (corresponding to 100%)
Test scores are labeled on the bases.
 |
| Matched Pair @ US$ 210,00 |
 |
| Matched Pair Test Data |
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| Sylvania @ US$ 85,00 & GE @ US$ 99,00 |
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| Sylvania & GE VT-25 Test Data |
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| Matched Pair (1 w/National label) @ US$ 230,00 |
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| Matched Pair (1 w/National label) Test Data |
HYTRON VT-25 / 10 Pair
HYTRON VT-25 / 10 Pair
VT-25/10 is one of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. These two Hytron tubes have identical internals and are Thoriated Tungsten Filament type with the warm bring glow that looks really stunning in any audio amplifier. These tubes have been tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
VT-25/10 is one of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. These two Hytron tubes have identical internals and are Thoriated Tungsten Filament type with the warm bring glow that looks really stunning in any audio amplifier. These tubes have been tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
Va = 250v
Vg = 18,5v
Vh = 7,2v
Ia = 10,0mA (corresponding to 100%)
Test scores are labeled on the bases.
 |
| Hytron VT-25 |
 |
| Hytron VT-25 Test Data |
Prices :
Tube-1 : US$ 72,00
Tube-2 : US$ 95,00
VT-25 / 10 Sylvania and Hytron Singles
One of the early high vacuum triode tube suitable for use as an audio-frequency amplifier. We have 4 single tubes as seen in the pics. These are all Thoriated Tungsten Filament type with the warm bring glow that looks really stunning in any audio amplifier. These tubes have been tested on the Amplitrex AT-1000 tester with reference to the following manufacturers tube data :
Va = 250v
Vg = 18,5v
Vh = 7,2v
Ia = 10,0mA (corresponding to 100%)
Test scores are labeled on the bases.
Prices :
Tube-1 : Sylvania VT-25 w/dual bottom getter @ US$ 89.00
Tube-2 : Sylvania VT-25 w/single bottom getter @ US$ 69.00
Tube-3 : Hytron VT-25 w/single bottom square getter @ US$ 89.00
Tube-4 : Hytron VT-25 w/single bottom drum getter @ US$ 99.00
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