Super-premium Octal Beam Tetrode, impervious to overload when used at parameters found in existing 6550/KT88/KT90 circuits. Plate dissipation of 60 watts and higher current handling capacity has allowed the design of new amplifiers which are unique, extremely powerful and stable.
The price applies to one tube.
To get matched tubes you must order the number of tubes that you need and select the needed matching-option. For example: to get two quartet you must order 8 tubes and select the "quartet" matching. If you need a pair then order two tubes and choose the "pair" selection.
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