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18th September 2012, 02:56 AM
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#1 |
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diyAudio Member
Join Date: Aug 2012
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Hiraga super class A with SJEP120R100A?
I want to build a Hiraga class A amp but using semi south SJEP120R100A. Can we use this? This transistor has very low distortion figures..
love to use that.. Last edited by rhythmsandy; 18th September 2012 at 03:08 AM. |
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18th September 2012, 05:11 AM
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#3 |
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diyAudio Member
Join Date: Aug 2012
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super class A 30Watts
Jean Hiraga's Super Class-A Amplifier |
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18th September 2012, 05:11 AM
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#4 |
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diyAudio Member
Join Date: Aug 2012
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i dont think there are complimentary pairs so the design would change...
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18th September 2012, 07:22 AM
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#5 | |
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The Dastardly Dad of Three
diyAudio Member
Join Date: Sep 2009
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Quote:
One of Kaneda's amps may suit (schema below) but I'd probably go for one below which is off a japanese guru's site (i forget where i got the link but for sure it was from this forum) - link is: http://www.geocities.jp/mutsu562000/...m/e/hp179e.htm Little knowledge is a dangerous thing but i *think* youd be able to get to the right ballpark by yanking out (for both fets) the 150R thermistor+100R resistor and replacing with maybe a 500R pot to get the bias correct..... |
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18th September 2012, 07:26 AM
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#6 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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6L6 started thread about sort of Aleph J with Semisouths
Pa gave him both Jfets and explained sch , on last year's BAF
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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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