5881 / KT66 power tubes


Hello everybody.

I just have one quick and easy question: can I sweep a couple of KT66 power tube instead of its original 5881 in my JTM45 2255 reissue head?

any risk or anything to set?

thank you all in  advance 

kind regards

Claudio "Klide" Bauducco

edited 05 Sep 2016 at 11:58 AM

Claudio Bauducco

asked 05 Sep 2016 at 11:56 AM

Claudio Bauducco
Answers: 1


Hello Claudio,

You couldn`t carry out a straight swap of valves from KT66 to 5881 without the amplifier being modifed, this is not something we as a company could carry out.

answered 06 Sep 2016 at 02:23 PM

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