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In Reply to: didn't like the triode mod on my ST70 posted by Francis S on August 12, 2000 at 19:01:12:
Put me down on the list of those who have tried this modification and never liked it. I have even "A-B'd" the sound between two otherwise identical ST70's.There is a thorough discussion of triode connected pentodes, and particularly the ST70 on page 35 of Sound Practices Fall '92 issue by Herb Reichert.
Basically, feedback drops from 18.8db to 10db, distortion increases from 1% at 30 watts to 2.7% at 15 watts. Sensitivity falls from 1.3v for 30 watts to 1.6v for 15 watts.
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Follow Ups
- Re: didn't like the triode mod on my ST70 - Gary Kaufman 08/12/0021:31:46 08/12/00 (2)
- Re: didn't like the triode mod on my ST70 - pkeller 22:32:30 08/12/00 (1)
- Re: didn't like the triode mod on my ST70 - Gary Kaufman 22:43:55 08/12/00 (0)