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Old 28th June 2006, 02:27 AM   #11
arnoldc is offline arnoldc  Philippines
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Hi alex, if you mean LTP or split load- it's hard to explain but it's very smooth sounding without being slow or suffering from dynamics.
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Old 28th June 2006, 05:11 AM   #12
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what does it do to the cost? because it looks like it help make everything a little more simple
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Old 28th June 2006, 10:22 AM   #13
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Cost can be a stumbling-block where interstage trannies are concerned. A good one costs plenty and for maany years they were considered poor. However, there are good ones available these days and Lundahl has the best reputation, to my knowledge.
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Old 28th June 2006, 02:34 PM   #14
jane is offline jane  Norway
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With ~250V at the plate and ~4V bias (2xLED) wouldn't that indicate a lot of current drawn in the 6SN7?
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Old 29th June 2006, 12:46 AM   #15
arnoldc is offline arnoldc  Philippines
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alex, the Lundahl 1660S will cost you some $200 so you compare that with tube phase splitter, it will be much higher. But it's your call. For me, I haven't done one like this, so there

jane, maybe so. My mind is still thinking 417A perhaps so the paralleled 6SN7 maybe getting more than what they need.
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Old 6th July 2006, 03:43 AM   #16
AJT is offline AJT  Philippines
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why not push-pull it all the way? the ll1660 can be hooked up as such, a 6sn7 push-pull driver in a differential mode instead of paralleling them.
the best advertisement for a good audio design is the number of diy'ers wanting to build it after all the years....never the say so of so called gurus....
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Old 6th July 2006, 03:51 AM   #17
arnoldc is offline arnoldc  Philippines
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Tony, I thought of it using 5842 pairs, ala Amity.

Although I have several pairs of 6SN7, I dont like them (prejudice) in this amp. I don't know why


However, why would I limit myself

It will be driven by a preamp anyway, so I can avoid using an input transformer. What do you think?
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