geetarman49
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Quote:
i have both rectangular- & d-getter type tubes, not all 12au7 of course - those getters look physically different. wrt the cbs hytron, it seems that the rectangular getters can be found with both angled and straight, horizontal arrangements, but i don't know if this makes any difference in terms of sonic quality. a careful side-by-side comparison of several instances of each type would be req'd to confirm.
geetarman49 Is it possible that what I described as a "sloping square getter" is in fact a D getter. I have also seen these described as "mid 1950's...14 mm black plate tubes with angled bent rectangular getters."
i have both rectangular- & d-getter type tubes, not all 12au7 of course - those getters look physically different. wrt the cbs hytron, it seems that the rectangular getters can be found with both angled and straight, horizontal arrangements, but i don't know if this makes any difference in terms of sonic quality. a careful side-by-side comparison of several instances of each type would be req'd to confirm.