KT90

The KT90 is a vacuum tube used in audio applications. Typically, it is used in hi-fi or electric guitar amplifier applications. KT90 was developed by Elektronska Industrija Niš (Ei).

Features

The KT90, or in full, "Kinkless Tetrode 90", is a beam power tetrode and features the same octal socket as its smaller variant, the KT88. It may therefore be used as a substitute, given appropriate re-biasing when used in push-pull configuration.[1]

The KT90 is currently manufactured by Electro-Harmonix, who claim that, despite its different construction, it possesses similar sound characteristics to the EL34 valve.[2] Semi-formal research has been conducted by U.K. supplier Watford Valves who have published a test report.[3] (This research is described here as "semi-formal" because it consists primarily of listening evaluations which may be subjective, rather than electrical analyses of performance parameters in either numerical or graphical form.)

References

  1. ↑ "TDSL Tube data [KT90]". Duncanamps.com. 2010-02-28. Retrieved 2011-09-08.
  2. ↑ "KT90 – Power Vacuum Tube". Electro-Harmonix. Retrieved 2012-07-25.
  3. ↑ http://www.watfordvalves.com/cgi-bin/documents/testreport_42.pdf
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