Black Sable vacuum tubes are some of the best around. BLACK SABLE are Cryogenically Treated Vacuum Tubes. This process is far more than putting tubes in a chamber and lowering the temperature. The BLACK SABLE process starts with tube selection. Only the best preamp, power and rectifier tubes are chosen to undergo this arduous process. All tubes undergo a 24 hour burn-in under load. The tubes are then placed in the Cryo-Processor where a computer-controlled proprietary system lowers the temperature to -300 Fahrenheit / -184 Celsius for 24 hours and then slowly ascends back to room temperature. Preamp tubes are tested and rated for Gain, Microphonics and Noise. Next, all 7/9 pin tubes have their pins cleaned for a better electrical connection. Power tubes are matched to within 3% for both Ip (Plate Current) and Gm (Transconductance). No other cryogenic process comes close. When only the best will do, choose BLACK SABLE.




BLACK SABLE JJ EL34
BLACK SABLE JJ EL34
$87.96
Time Remaining: 7d 12h 48m
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BLACK SABLE JJ 6L6GC
BLACK SABLE JJ 6L6GC
$94.96
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BLACK SABLE JAN Philips 12AT7
BLACK SABLE JAN Philips 12AT7
$99.95
Time Remaining: 7d 12h 51m
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BLACK SABLE JJ E88CC 6922 Gold Pin
BLACK SABLE JJ E88CC 6922 Gold Pin
$109.95
Time Remaining: 7d 12h 51m
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BLACK SABLE Tung Sol 12AX7 Gold Pin
BLACK SABLE Tung Sol 12AX7 Gold Pin
$99.95
Time Remaining: 7d 12h 52m
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BLACK SABLE Sovtek 12AX7LPS
BLACK SABLE Sovtek 12AX7LPS
$49.95
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BLACK SABLE JJ 6550
BLACK SABLE JJ 6550
$129.96
Time Remaining: 7d 12h 56m
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BLACK SABLE Philips Holland 6922
BLACK SABLE Philips Holland 6922
$499.95
Time Remaining: 7d 13h 9m
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BLACK SABLE JJ ECC83 12AX7 Gold Pin
BLACK SABLE JJ ECC83 12AX7 Gold Pin
$109.95
Time Remaining: 7d 13h 36m
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BLACK SABLE Mullard ECC81 12AT7
BLACK SABLE Mullard ECC81 12AT7
$149.95
Time Remaining: 7d 13h 37m
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BLACK SABLE JJ ECC82 12AU7 Gold Pin
BLACK SABLE JJ ECC82 12AU7 Gold Pin
$109.95
Time Remaining: 7d 13h 41m
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