TU-8400 Tube Set

A quality tube set complement for the TU-8400 (kit supplied without tubes).

• Voltage amplifying tube (12AX7, ECC83, 7025) x 1pc
  • Preferred series 7025
• Output tubes x 2pcs 
  
  • Preferred series EL34 (matched)

Tubes are manufactured to be within certain tolerance ranges according to a specification but like all electrical devices there are variances from tube to tube and section to section. 

Power tubes are paired up based on their current draw, or "plate current". Measuring plate current draw under operating conditions is generally considered to be the most accurate method for rating a power tube, and is the method employed with the Preferred Series.

Tubes will ship with amp kit.