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Old 16th January 2011, 02:11 AM   #1
a.wayne is offline a.wayne  United States
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Default Papa's New sand toys .......

How much for the meters Papa, big enuff ? ....


Pass Labs showed off two nice beer fridges, er, amplifiers at this year’s CES. Lacking any model numbers or nomenclature, the top monoblock amp (the top two units) is a single-ended 200W amp and the bottom monoblock is a single-ended 300W amp .

Nelson Pass is shooting to use no feedback on these circuits and maintain the Super Symmetry design made popular in far less extreme applications. The new part for these amps is a brand new silicon-carbide FET. These FETs were initially designed for the military—way to turn swords into plow shares and space heaters, Nelson!—and Pass Labs intends on exploring their use in future products.

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Old 16th January 2011, 03:49 AM   #2
6L6 is offline 6L6  United States
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That is stupendously cool... me likey!!!!
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Old 16th January 2011, 04:04 AM   #3
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Originally Posted by 6L6 View Post
That is stupendously cool... me likey!!!!
Got $45,000 U$D for 200 watts (a pair) - or $75,000 U$D for a pair of 300 watt units? I'm not sure if that includes the standard power cords tho

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Old 16th January 2011, 04:11 AM   #4
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Old 16th January 2011, 04:26 AM   #5
49 - for the 18th time
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If you can't afford to buy then diy
'N thank goodness that "Papa" is here to share his knowledge and advice (and sometimes some hints or clues) - and share he does!!!
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Old 16th January 2011, 10:21 AM   #6
Zen Mod is offline Zen Mod  Serbia
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"no feedback" take with pinch of salt

who knows what Papa sez and what they figured and wrote

... "no feedback" and "susy" can't be on same page , at least in Brainless ZM's book ...

in any case - I always like Papa's Demonstrations of Force

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Old 16th January 2011, 03:30 PM   #7
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well ....... there is some additional info ;

less hogwash regarding feedback/susy , some interesting numbers ( quadruple ,quintuple,hgwshuple , number of teuer output devices ) but also added hogwash regarding "same output stage topology as XA200.5 " which certainly isn't made of one polarity outputs ; to my knowledge - Papafets are made in one polarity .....

anyway - just chatting ....... 'till Papa decide to reveal more crumbs

for now - I'm even ignorant in that area - can SITs be made in both modes - normally on and normally off

tried to find , but without success

edit :

oh Boy - I hope some wakoo enough rich & clever bstrd will buy enough of these for his 7+1 setup , so Papa can trow some more pocket money for developing new SS tube parts
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Last edited by Zen Mod; 16th January 2011 at 03:48 PM.
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Old 16th January 2011, 03:37 PM   #8
a.wayne is offline a.wayne  United States
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SS tube Parts ? HUh ...... anyway i want dem meters, love meters .....
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Old 16th January 2011, 03:48 PM   #9
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as I wrote in Pub - nobody really think about fact that new Papafets are same as WE 300B in tube world - but sans need for output xformer

meters ..... yeah
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Old 16th January 2011, 03:52 PM   #10
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I think this picture is already posted , either in Pub or in Diy progress report

even if amps aren't (probably ) the same - size is
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