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Tube Imp Mini Tube Tester

Tube Imp Mini Tube TesterThe Tube Imp mini tube tester measures the steady state current, gain and transconductance characteristics of any B9A double triode tube with the standard ECC83/ECC88 footprint. Operating at 12VDC from the included external power supply, the Tube Imp offers matching and parameter testing of a range of commonly used double triode tubes at a price that is affordable to individual tube equipment enthusiasts as well as retail outlets small OEM concerns. Tubes that can be tested include ECC81/12AT7, ECC82/12AU7, ECC83/12AX7, ECC88/6DJ8WA/6922, ECC189 and ECC803.

Available from Tube-Imp.co.uk


  • HT Voltage maximum: 200 Volts
  • HT Voltage adjustment: 0-200 Volts
  • HT Setting accuracy: Typically better than +/-2%
  • HT Current: 10mA max
  • HT Impedance on Gain setting: >1Meg Ohm
  • Grid Voltage range: 0 to -10 Volts
  • Grid Voltage setting accuracy: Typically better than +/-2%
  • Heater Voltage: 6.3/12.6volts DC switchable
  • Heater Current 350mA, 500mA for less than 5 mins

Measurement Accuracy:

  • Cathode Current: +/-2%
  • Transconductance: +/-4%
  • Gain: (Anode Impedance in K Ohms)+/-5%

Tube Imp Mini Tube Tester review in Hi-Fi Choice Magazine
Title: Tube Imp Mini Tube Tester review in Hi-Fi Choice Magazine (1199 clicks)
Filename: tube_imp_review_in_hifi_choice_magazine.pdf
Size: 178 kB