This is a brand-new factory Psvane 6CA7-T MKII premium grade audio vacuum tube . Direct replacement for 6CA7 and EL34 power tubes, widely used for Hi-Fi tube amplifiers, guitar tube amps and DIY audio builds.
Factory tested and tightly matched for plate current and transconductance, low noise, stable performance, warm and detailed sound with rich midrange and extended bass.
Gold-plated pins, fine workmanship, ideal upgrade for your EL34 / 6CA7 tube amplifier.
Package includes: 1PC tube

Product Specifications  

• Brand: Psvane
• Model: 6CA7-T MKII (Premium Grade)
• Quantity:1pc
• Type: Beam Power Pentode / Output Vacuum Tube
• Direct Replacement: 6CA7, EL34
• Anode Dissipation: 25W
• Filament: 6.3V
• Base: Octal 8-pin
• Application: Hi-Fi tube amplifier, guitar tube amp, audio DIY
• Matching: Factory matched (Ip & Gm matched)
• Condition: Brand New, factory tested
• Feature: Gold-plated pins, low noise

• 6CA7-TII is high property audio output pentode, its anode limited dissipation power is 25W, the output power is over 10W when it is used as class A1 in amplifier single tube, and it is over 35W when it is used as class AB1 double tubes.

   6CA7-TII is very similar with  EL34, which can be replaced by each other.

   

  Heater
  UH……………………………6.3 V
  IH……………………………1.5 A

  Static Parameter
  Ua…………………………… 250 V
  Ug2……………………………250 V
  Ug3…………………………… 0 V
  -Ug1…………………………12.2 V
  Ia…………………………… 100 mA
  Gm…………………………… 11 mA/V
  ri…………………………… 15 kΩ
  μg1-g2………………………11    

  Maximum Rating
  Ua……………………… 800 V
  Ug2………………… 500 V
  Ug1………………… -100 V
  Pa………………… 25 W
  Pg2…………… 8 W
  Ik………………………150 mA
  Rg1
  With cathode bias………………………0.7 MΩ
  With fixed bias……………………0.5 MΩ
  Uh-k ………………±100 V
  Tbulb………………………250 ℃

  Direct Interelectrode Capacitances

  input…………………… 15.2 PF
  output…………………… 8.4 PF
  grid to plate…………………… 1.1 PF
  grid to filament……… 1.0 PF
  Cathode to filament…………… 10 PF

   Recommended Operating Conditions(reference value)
  class A1, singel tube, fixed bias
  Ua(b) …………………… 265 265 V
  Ua……………………………250 250 V
  Ug2……………………… Rg2=2k Rg2=0 
  Ug3……………………………0 0 V
  -Ug1……………………… 14.5 13.5 V
  Ia(0) ………………………70 100 mA
  Ig2(0) …………………… 10 14.9 mA
  Gm…………………………… 9 11 mA/V
  ri……………………………18 15 kΩ
  RL…………………………… 3 2 kΩ
  Pout………………………… 8 11 W
  Dtot…………………………10 10 %

  push-pull, class B1, fixed bias
  Ua……………………………375 400 V
  ▲Rg2………………………… 600 800 Ω
  Ug3………………………… 0 0 V
  -Ug1………………………… 33 36 V
  Ia(0) …………………2×30 2×30 mA
  Ia(maxsig) ………2×107.5 2×110.5 mA
  Ig2(0) ………………2×4.7 2×4.5 mA
  Ig2(maxsig) ………2×23.5 2×23 mA
  Rl(a-a) ………………3.5 3.5 kΩ
  ü(g1-g1)(r.M.S) ……… 46.7 50 V
  Pout……………………48 54 W
  Dtot……………………2.8 1.6 %
  ▲ Rg2is used in two tubes.

  push-pull, classB1, cathode bias, ultra-linear connection 
  (43% tapping points)
  Ua………………………………430 V
  Rg2…………………………… 2×1 kΩ
  Ia(0) ………………………2×62.5 mA
  Ia(max.sig) ……………… 2×65 mA
  Ig2(0) ………………………2×10 mA
  Ig2(max.sig) …………… 2×10.2 mA
  Rk……………………………2×470 Ω
  ?(g1-g1)(r.M.S) ……………35 V
  RL(a-a) ……………………… 6 kΩ
  Pout……………………………20 W
  Dtot………………………… 0.35 %