 | 5AR4, Chinese Chinese 5AR4 Vacuum Tube | $13.50 More Details |
 | EL34B STR, Ruby Tubes Octal power tube (Max Plate Watts = 25W) | Varies by Option More Details |
 | ECC802 / 12AU7 Long Plate, JJ JJ Electronics 12AU7, long plate. | $13.50 More Details |
 | 6922 / E88CC, JJ Replacement for 6922, 6DJ8, ECC88 and E88CC tubes. JJ Tubes are known for known for their high quality, durability, and their excellence in tone. Formerly produced by Tesla, JJ tubes are still made to exacting standards. They work well in all applications. | $12.00 More Details |
 | Ruby 5U4GC Vacuum Tube Ruby tubes are sorted and selected for the maximum quality possible. The sorting process eliminates failures and ensures satisfaction. | $12.20 More Details |
 | ECC803/12AX7, long plate, Gold Pins, JJ The JJ ECC803 is a long-plate version of the standard 12AX7. The longer plates give the tube higher gain. It has a rich and full tone with creamy distortion that does well in any 12AX7 application. Gold Pins for the highest quality possible. Spiral filament for reduced microphonics. JJ Tubes are known for known for their high quality, durability, and their excellence in tone. Formerly produced by Tesla, JJ tubes are still made to exacting standards. They work well in all applications. | $24.50 More Details |
 | 5AR4 Ruby 5AR4 Ruby, Rectifier Tube | $15.00 More Details |
 | KT88, JJ Octal power tube (Max Plate Watts = 42W) Base Type: Octal Uf 5.3 V If ca 1.6 A Typical Characteristics Ua 250 V Ug2 250 V Ug1 -15 V Ia 140 mA Ig2 max. 7 mA S 11.5 mA/V Ri 12 kΩ μ-g1-g2 8 Triode Connected Ua,g2 250 V Ug1 -15 V Ia+g2 147 mA S 12 mA/V Ri 670 Ω μ 8 Limiting Values Ua 800 V Ug2 600 V Ug1 -200 V Wa 42 W Wg2 8 W Wa,g2 46 W Ik 230 mA Uk/f 205 V Rg1-k cathode bias Wa+g2 35 W, between 270 kΩ and 470kΩ Rg1-k fixed bias Wa+g2 35 W, between 100 kΩ and 220Ω Capacitances Cg1 16.5 pF Ca | Varies by Option More Details |