Free Shipping｜ Electronic Accessories ｜JJ Electronics 12AT7/ECC81 Slovakia Preamp Tube

Known for exceptional tone, clarity, and durability, the JJ 12AT7/ECC81 is a medium-gain dual triode tube ideal for use in preamp sections, reverb drivers, and hi-fi systems. Manufactured in Slovakia with strict quality control, this tube delivers warm, articulate sound with low noise—making it a favorite for guitar amps and audio gear.
Whether you're upgrading your amp or restoring vintage gear, JJ tubes are trusted by professionals and tone purists alike.
Features

Rich tone and low microphonics
Warm and articulate response
Ideal for preamp, reverb, and hi-fi applications
Manufactured by JJ Electronics in Slovakia

Specs

Tube Type: 12AT7 / ECC81

Configuration: Dual triode

Gain Rating: Medium (typically ~60% of 12AX7)

Heater Voltage: 6.3V or 12.6V

Heater Current: 300mA @ 6.3V | 150mA @ 12.6V

Plate Voltage Max: 300V

Transconductance (Gm): ~5500 µmhos

Typical Plate Resistance: ~15,000 ohms

Base Type: 9-pin (Noval)

Socket Compatibility: Standard 12AT7 / ECC81 sockets

Applications: Guitar amp preamp stages, reverb drivers, studio gear, hi-fi audio

Country of Origin: Slovakia

Quantity: Single tube
Brand:JJ ElectronicsCategory:Amplifier AccessoriesSKU:JJECC81Tags:Tube