Click to zoom in
Customer Images:
No Images yet! Submit a product image below!
Vacuum Tube - 12AT7 / ECC81-C, Tube Amp Doctor, Premium Selected
Rich-sounding Reverb Driver - Also Great for Headphone Amps!
Latest version: Low noise tube, selected for best symmetry and balance. A strong driver tube and a wounderfully rich-sounding reverb driver. Also used in the great Brocksieper EARMAX / EARMAX PRO headphone amps and other High-End Audio amplifiers.
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
| Body Height | 49 mm | |
| Bulb Temperature | 190°C | |
| Cathode Current (Ik) | 15 mA | |
| Cathode to Heater Voltage | ≤ 100 V | |
| D.C. Grid Voltage, positive | -55 V | |
| D.C. Plate Voltage | 330 V | |
| Grid to Cathode Capacitance (cg/k) | 2.2 pF | |
| Grid to Heater Capacitance (cg/h) | 1.4 pF | |
| Grid to Plate Capacitance (ca/g) | 1.5 pF | |
| Heater Current | 0.15 / 0.3 A | |
| Heater Voltage | 6.3 / 12.6 V | |
| Item Diameter | 22.5 mm | |
| Item Height | 56 mm | |
| Plate Dissipation (Wa) | 2.5 W | |
| Plate to Cathode Capacitance | 0.2 pF |
| Packaging Dimensions | 1 in. × 1 in. × 3.25 in. | |
| Weight (Packaging) | 0.037 lbs. |
 Specification Sheet | All Models |
My Project Lists
Specifications, Files, and Documents
Questions and Answers
No questions have been asked about this product.
Have a question of your own? Ask us now!
Substitute Products
The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.
Customers who purchased this item also bought
Vacuum Tube - 12AX7A-C / ECC83, Tube Amp Doctor, Premium Selected 
Vacuum Tube - 6L6GC, Tube Amp Doctor
Vacuum Tube - 7025-WA, Tube Amp Doctor, High-Grade, Premium Selected
Vacuum Tube - 7025, Tube Amp Doctor, High Grade
Vacuum Tube - 5AR4 STR, Tube Amp Doctor
Vacuum Tube - 5751, Tube Amp Doctor, Premium Selected
Product Reviews