Tungsol KT120
The Tungsol KT120 is a beam tetrode with a plate dissipation of 60watts making it the most powerful tube in the 6550 / KT88 / KT90 family.
A pair of Tung sol KT120's configured in push-pull can deliver power levels of 150 watts or more.
The Tungsol KT120 when used at the parameters found in existing 6550 / KT88 / KT90 circuits , the Tung sol KT120 is impervious to overload, delivering peak power with extreme reliability and long life.
Using the Tung sol KT120 as a direct replacement for any 6550 of KT88 will provide much longer tube life and reliability.
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