JJ Electronic

JJ Electronics 6CA7 - Apex Burned-In / Matched Pair

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JJ Electronics 6CA7 - Apex Burned-In / Matched Pair

The JJ Electronic 6CA7 is a true to form reproduction of a classic tube that will work in most EL34 amps. The 6CA7 is often considered the American cousin to the British EL34. Sonically, this tube is closer to a 6L6 than an EL34 but without the sometimes harsh high end of the 6L6. The JJ 6CA7 offers warm highs with punchy articulate mids and tight lows. Wielding even more power than a KT77, this tube is a great choice for people looking for a change in their EL34 amp’s tone or want to push their levels that much further.


  • Body Height 100 mm
  • Cathode Current (Ik) ≤ 150 mA
  • Filament Current (If) 1.5 A
  • Filament Voltage (Uf) 6.3 V
  • Grid 2 dissipation (Wg2) ≤ 8 W
  • Grid Voltage 1 (Ug1) ≥ -100 V, 32 V typical
  • Grid Voltage 2 (Ug2) ≤ 500 V, 400 V typical
  • Grid capacitance (cg1) 16.5 pF
  • Grid to Plate Capacitance (ca/g) 1 pF
  • Heater to cathode voltage (Uk/f) ≤ 200 V
  • Internal Resistance (Ri) 24 kΩ
  • Item Diameter 38 mm
  • Item Height 115 mm
  • Plate Capacitance (ca) 9 pF
  • Plate Current (Ia) 50 mA
  • Plate Dissipation (Wa) ≤ 25 W
  • Plate Voltage (Ua) ≤ 800 V, 400 V typical
  • Transconductance (S) 9.5 mA/V
Matched versions of this tube use Apex® Matching
Choose burned-in tubes for maximum stability and performance.


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