Do you have the or gold faceplate version (to identify the production era)?
The new owner was thrilled until he realized the . In the pre-internet era, this was a crisis. Jadis is notoriously protective of its designs, often refusing to share schematics even with professional technicians. Without the manual, the owner didn't know the crucial biasing procedure —a delicate process for this specific model that ensures the tubes don't "drift" or, in worst-case scenarios, produce "big smoke". jadis da30 manual
features . This means you can swap compatible power tubes (like KT88s or 6550s) without needing to manually adjust the internal voltage. Do you have the or gold faceplate version