Tube Amp Doctor TAD FIVE 12AU7 ECC82 Balanced sections SELECTED HIGH GRADE

Description

FIVE new, factory tested TAD HIGH GRADE , SELECTED 12AU7 ECC82 tube.  This new production TAD 12AU7 tube is hand-matched in Germany.  These are extremely high quality new production tubes.  The factory describes these as follows
12AU7A / ECC82 TAD Premium Selected (balanced)
The Perfect Choice for Stereo Audio Applications - Ideal as a Balanced Driver
Latest revision providing great musical performance and rich tone. This
TAD 12AU7A / ECC82
has especially strong systems which are selected to provide two symmetric triodes. The perfect choice for stereo audio applications and ideal as a balanced driver.
Replaces 6N10, 6189W, 5814A etc.
Q: When does a preamp tube become a
Premium Selected
tube?
A: All preamp tubes labeled
Premium Selected
have passed the following tests:
- Low Noise Test
- Microphonic Test
- Gain Test
- Sonic Tests
- Shock Tests
- Listening Tests
- Balanced Output Test
Matching and Selecting Options for Preamp Tubes
Matching in Pairs
for preamp tubes means that two tubes show identical gain, hence, four characteristically identical systems.
This matching method includes our
Balance-Selection
. We highly recommend this matching method for hi-fi systems.
TAD Premium Selected/Highgrade tubes are guaranteed for a period of 6 months (according to terms of warranties)
for the quality criteria mentioned above.
RohS Compliant
On Nov-06-19 at 06:20:22 PST, seller added the following information:
Vacuum Tube Values is a Mundorf Premium Partner