The JJ ECC81 (12AT7) is a low noise preamp valve from JJ Electronic.
Many amps use an ECC81 as the reverb driver. The output current of an ECC81 is ten times higher than other preamp valves, so these will usually wear out faster than the ECC83 (12AX7) valves in your amp. If the reverb gets weaker and muddier while the rest of the amp still sounds good, chances are you need a new ECC81.
Offered here in three variations.
- Factory Tested: Direct from our stock
- Premium Tested: Tested in-house at 250 volts with – 2 volts bias to simulate real conditions in your amp. This includes…
- Shorts
- Cathode to heater insulation (important to ensure low hum)
- Anode insulation
- Anode currents on the two triodes (which we print on the box for reference)
- Balanced: In addition to the above tests and labelling, we select units with closely matched anode currents. The box label shows the anode currents and the Gm of each triode. Ideal for the phase splitter position in your amp, ensuring even drive to the output stage.
Made by JJ Electronic in Slovakia.
Includes our class-leading 180 day warranty.
