Made in USA
CERTIFIED ULTRA-LOW-NOISE SPECIMENS WITH WARMER TONE
Actual Matched Pair Visual Test Results
tube 1: 1,800 / 1,700 uMhos = 108%/106% (mA/V) - WOW!
tube 2: 1,700 / 1,600 uMhos = 106%/100% (mA/V) - WOW!
TESTED AT REAL-WORLD POWER LEVELS ON AMPLITREX AT-1000
NOS SYLVANIA made in USA
ECC83 - 12AX7
All our tubes are Tested on Amplitrex AT1000 Digital Tube Test System
PASSED THE AMPLITREX DIGITAL TESTS
Low-Noise Tested Microphonic Free
No H-to-K Leakage (Heater-to-Cathode) No leaks (0) zero!
Actual tube was tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System
CERTIFIED ULTRA-LOW-NOISE MUSEUM SPECIMENS
TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.
Terms of Auction
International Buyers - Please note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
We do not guarantee that your tester, or your tester's measurements will be the same as the Amplitrex AT-1000. Older testers, different testers, or the same tester may report different test measurements, and may not measure the same tube meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift) There is no warranty or returns based on what any other tube tester reports.THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION
BID 1 FOR 1 TUBE
TUBEMUSEUM NEW YORK