Electro Harmonix / ECC83/12AX7-ELECTRO HARMONIX

ECC83 12AX7-ELECTRO HARMONIX ECC83 12AX7-ELECTRO HARMONIX Click on image(s) above to view larger
Select Test Options
  • Factory Tested
  • Balanced (Triodes)
  • High Gain

All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by all EU countries.

A test report is available click here to view

Electro Harmonix is the top end brand which is owned by the Sovtek corp. Many of these valve designs are new designs based on old classic items.
This 12AX7-Electro Harmonix has become one of the best sounding current production 12AX7/ECC83 types made today.

The valve has a very rigid internal construction, thick grade glass and short plates. This provides very low microphonics. The sound is well balanced with good clarity. The valve breaks up easily and quickly and being a high gain valve it is well suited to vintage as well as current high gain guitar amplifiers. Since its introduction we have found this to be very consistent performer which has also received rave reviews in the United States.

We offer three options:
1) Factory tested
2) Balanced -matched triode sections for Phase splitter, Audio & Tube microphones
3) High Gain

All Balanced & High Gain preamp valves are Dynamically Drive tested under real working condition have passed the following tests:

Gain (db) Drive Tested
Transconductance (gm) Drive Tested
Output Drive Tested
Noise 1 (signal to noise)
Noise 2 (Aural)
Microphonics Test 1(Ambient)
Microphonic Test 2 (Shock)
Cathode Test
Grid Leakage Test

If you want a matched pair then by ordering 2 of the balanced valves you will get a matched pair



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