I bought a used amp with a couple of tubes marked, "12AX7 Schober Organ made in the USA by Raytheon" They appear to be from early '60's. Thanks for any comments.
I never cared for sound the Raytheon 12ax7, maybe I never got a good one. That doesn't mean you won't like them. The only way you'll know for sure is try them in your equipment. Sorry if this doesn't help.
Raytheon made a fine 12ax7, but whether or not you like or care for its sound in a specific application is a whole other question. In general, tubes made for organ applications have been selected for lower microphonics.
No experience with the Raythons, my NOS Amperex 12ax7s/Holland 1960s does it for me, but having no referent makes it impossible to (truly) know how good they are. I was told, from an expert tuber, these are sure winners. Anyone want to bust my bubble, feel free.
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