Features:
High-quality 12AX7B vacuum tube, single.
For 12AX7/ ECC83/ B759/ 7025/ 5751 vacuum tube replacement.
Miniature dual triode and 9-pin design.
High voltage gain and ultra low noise.
Ideal for low-level audio voltage amplification, such as studio preamps or Hi-Fi gear.

Specifications:
Model: 12AX7B
Classifications: Dual Triode
Cathode Type: Indirectly Heated
Heater Voltage: 6.3V
Heater Current: 0.3A
Amplification Factor: 100
Anode Voltage: 330V
Anode Current: 1.2mA
Bias Voltage: -50V
Item Size: 5.6 * 2cm / 2.2 * 0.8in(Height * Diameter)
Item Weight: 12g/ 0.4oz
Package Size: 8 * 2.5 * 2.5cm / 3.1 * 1 * 1in
Package Weight: 16g/ 0.6oz

Package List:
1 * Vacuum Tube