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 noisemaking 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 mhos
- 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
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