Vacuum Tube - 12AT7 / ECC81-Cz, Tube Amp Doctor, Premium Selected
The TAD ECC81 / 12AT7-Cz is selected with regards to a tight balance of both triodes making it ideal for the use as a balanced phase inverter. In addition to the perfect symmetrical systems, the strong amplification characteristics of the TAD ECC81 / 12AT7-Cz support increased dynamics of the output stage when used as phase driver or phase inverter tube.
Q: When does a power tube become a Premium Selected power tube?
A: All power tubes labeled Premium Selected have passed the following tests:
- Plate Current (PC) and Amplification (TC)
- Low Noise Test
- Microphonic Test
- Sonic Tests
- Shock Tests
- Listening Tests
- Shorts & Leakage Tests
Approximate net weight | 13 g | ||
Base | E9-1, Small Button 9 Pin | ||
Cooling | conventional | ||
Diameter | 22 mm | ||
Heater Voltage (AC or DC) Parallel | 6.3 V +/-0.5 V | ||
Heater Voltage (AC or DC) Series | 12.6 V +/-1.0 V | ||
Height | 55.6 mm | ||
Operating Position | Any | ||
Seated height | 49.2 mm |
Packaging Dimensions | 1 in. × 1 in. × 3.25 in. | ||
Weight (Packaging) | 0.0331 lbs. |
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