BTW, while I've never owned any of the stereo tube tuners made by the original H. H. Scott company, such as your 350A, I've owned three of the mono tuners of that era (310C, 310D, 311D) which provided a "multiplex output" jack, and so could be used as stereo tuners in combination with a Scott LM35 or 335 multiplex adapter, or a Fisher MPX-100 multiplex adapter (all of which I also owned). And I believe that from an electrical standpoint the 350A was essentially a combination of the 335 and one of the mono tuners.
This was mainly during the 1990s, and I recall all of those models as producing really nice sound, especially the 310D + external multiplex adapter. Although as might be expected their weak signal reception capabilities were not of the same calibre as those of the far more expensive Marantz 10B (stereo) or REL Precedent (mono with multiplex out jack).
Best regards,
-- Al
This was mainly during the 1990s, and I recall all of those models as producing really nice sound, especially the 310D + external multiplex adapter. Although as might be expected their weak signal reception capabilities were not of the same calibre as those of the far more expensive Marantz 10B (stereo) or REL Precedent (mono with multiplex out jack).
Best regards,
-- Al