Too bad Roger Modjeski (Music Reference, RAM Tube Works) is no longer with us. He had worked on a couple of Transcenent OTL amps, and had even come up with fixes for their "problems".
I don't know if he can help, but I would give Tom Carione at Brooks Berdan, Ltd. a call. He is at least familiar with the Atma-Sphere OTL's, and tube amps in general. He does factory-authorized repair work on VTL and Jadis amps and pre-amps too.
I don't know if he can help, but I would give Tom Carione at Brooks Berdan, Ltd. a call. He is at least familiar with the Atma-Sphere OTL's, and tube amps in general. He does factory-authorized repair work on VTL and Jadis amps and pre-amps too.