Ultrasimple SIT PP amp from BAF , or SIT Beast with a Thousand PSUs - diyAudio
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Old 8th October 2013, 04:21 PM   #1
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Default Ultrasimple SIT PP amp from BAF , or SIT Beast with a Thousand PSUs

thread .

though - it needs Pa's confirmation - is it F7 , or just intermediate bone to Greedy Boyz Dogz




thread title edited , to not have any connection with F7 (Future Joy of Greedy Boyz , or Our Next Manna )

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Old 8th October 2013, 04:24 PM   #2
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Intermediate bone.

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Old 8th October 2013, 04:29 PM   #3
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luckily , some Greedy Boyz are owned by real Dogz , so there is at least some intelligence ...........

(Mighty Moi included )
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Old 8th October 2013, 04:39 PM   #4
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Old 8th October 2013, 04:43 PM   #5
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I have already hacked up the design and managed to triple the parts count.
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Old 8th October 2013, 04:47 PM   #6
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Quote:
Originally Posted by PSz. View Post
I have already hacked up the design and managed to triple the parts count.
based on my F6 trials, that Jfet front end will likely help.
Mine was motorboating without it.

So does the P channel SIT, the 7.4v is that a negative power supply?
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Old 8th October 2013, 04:56 PM   #7
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Quote:
Originally Posted by PSz. View Post
I have already hacked up the design and managed to triple the parts count.
You should remove 10R to stay closer to the idea of only active components :-).
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Old 8th October 2013, 05:03 PM   #8
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That is only the beginning. I'm gonna really bastardise it so I can play with second harmonics too.
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Old 8th October 2013, 05:10 PM   #9
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Again hard to find and obsolete 2SK82 / 2SJ28. Fun for a small circle.
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Old 8th October 2013, 05:10 PM   #10
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Is it possible to cool these TO-3 transistors passively? What are dissipations 60w/device...
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