What amps use the KT120 tubes?


As per the title -- can anyone list amps that use these tubes by design (not retrofit )?
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Emotive Audio Vitas use KT-120s. They can also run 6550, EL34, 6L6GC and their KT counterparts. I like the KT-120s best of all the tubes I've tried so far.
Checkout tomcataudio's facebook page ....photos and videos of a pair of KT120's 100watt Mono Blocks....I stumbled onto them...I understand he does triode/pintode mode switch also...they looked gorgeous!