Features:<br />High-quality J grade 6N4 vacuum tube・ single.<br />For 12AX7/ ECC83/ 7025/ 5751 vacuum tube replacement.<br />Miniature dual triode and 9-pin design.<br />High voltage gain and ultra low noise.<br />Ideal for low-level audio voltage amplification・ such as studio preamps or Hi-Fi gear.<br /><br />Specifications:<br />Model: 6N4<br />Classifications: Dual Triode<br />Cathode Type: Indirectly Heated<br />Heater Voltage: 6.3V<br />Heater Current: 0.325A<br />Amplification Factor: 97.5<br />Anode Voltage: 250V<br />Anode Current: 2.3mA<br />Bias Voltage: -1.5V<br />Item Size: 5.6 * 2cm / 2.2 * 0.8in(Height * Diameter)<br />Item Weight: 12g/ 0.4oz<br />Package Size: 8 * 2.5 * 2.5cm / 3.1 * 1 * 1in<br />Package Weight: 16g/ 0.6oz<br /><br />Package List:<br />1 * Vacuum Tube<br><img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/I/4/I2744/I2744-1-303e-PeQN.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/I/4/I2744/I2744-1-303e-nZli.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/I/4/I2744/I2744-1-303e-GkcU.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/I/4/I2744/I2744-1-303e-1fu8.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/I/4/I2744/I2744-1-303e-6Grw.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/I/4/I2744/I2744-1-303e-gosu.jpg" /><br>$$<img src="http://img.tomtop.com/product/xy/2000/2000/p/gu1/I/4/I2744/I2744-1-303e-NucL.jpg" /><br>