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4th July 2011, 09:05 PM
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#22 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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I bought two Lundahls 1674, connected primary and secondary windings to an autoformer and use them with a pair of modified F4.
 The sound has not the charm of the Semisouth solutions concerning the voices but in the sum it is a very very good solution! It is a detailed, yet relaxed sound with much atmosphere.....
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and the First W tt is......a really First Class P SS Idea !
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11th October 2011, 03:30 PM
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#23 |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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I followed Nelson recommendation to try different transformers...
This time I tried Jack Ellianos PVA2-N from his Electra Print... He recommends it as a transformer pre with a 10k pot Electra-Print.com PVA Passive Audio Pre-Amplifier I put it the crippled F4 as a gain stage, wired it as an auto former and...... I like it much more than the Lundahl 1674.......  and it costs only the half .....! (Lundahls 200.-€/ElectraPrint 120$) So if you want to have a try I recommend you to start with Electra Print!
__________________
and the First W tt is......a really First Class PSS Idea !
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14th October 2011, 11:43 PM
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#24 |
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diyAudio Member
Join Date: Sep 2011
Location: Netherlands & Australia
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B1 - trans/autoformer - F4?
As I was reading this thread, I could not stop wondering if positioning a trans/autoformer between a stock B1 and a stock F4 would give you a "B1 with gain" (or an "F4 with gain" depending on how you look at it)?
Would this work? |
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15th October 2011, 12:01 AM
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#25 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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yeah
especially if you use F4 (side) without Jfet buffer thread is exactly about something like that and it's mentioned already as "crippled F4"
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my Papa is smarter than your Nelson ! tnx to  clean  thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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15th October 2011, 02:35 AM
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#26 |
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The one and only
Join Date: Mar 2001
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You mean liberated F4 don't you?
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15th October 2011, 02:53 AM
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#27 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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it can be liberated when you do this , but when ZM is in case ....... it can only be crippled .....
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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15th October 2011, 09:54 AM
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#29 | |
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diyAudio Member
Join Date: Jul 2009
Location: Near Frankfurt
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Quote:
and thanks to audiorob again...!
__________________
and the First W tt is......a really First Class PSS Idea !
Last edited by generg; 15th October 2011 at 09:56 AM. |
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15th October 2011, 10:53 AM
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#30 | |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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Quote:
one is Greedy Boyz group ; other one is Papa group ; considering that Papa group contains just one member , conclusion is simple - where Mighty ZM belongs ..... I call that some distinction ..... and that's why is there other one , regarding liberation and crippling
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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