Another one from 2003. ... 😉
http://www.diyaudio.com/forums/solid-state/11162-transformer-driven-sepp-output-stage.html
http://www.diyaudio.com/forums/solid-state/11162-transformer-driven-sepp-output-stage.html
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Guys from your experience would an LM329 (6.9V) provide enough voltage for biasing IRFs? And would it make sense to use one instead of lets say a zener or extra leds?
Would it provide enough voltage? Probably. The original specified 5.1 wasn't enough. I went to a 9.1V zener.
I live the idea of a LM329. I haven't used them enough to know if they are a direct replacement for the Zener or LED string in this application. Hopefully somebody with more experience can chime in.
Paging Mr. Pass, Mr. Pass, please pick up the white courtesy telephone...
🙂
I live the idea of a LM329. I haven't used them enough to know if they are a direct replacement for the Zener or LED string in this application. Hopefully somebody with more experience can chime in.
Paging Mr. Pass, Mr. Pass, please pick up the white courtesy telephone...
🙂
not exactly Pa , but at least beard of mine is white in same amount ....... if telephone isn't 
use whatever you want , as long you put at least 3mA through reference
so , 3-5mA is good enough
though , generally , no special benefit of using there ref. chips with capability to work flawlessly at miniscule currents
use whatever you want , as long you put at least 3mA through reference
so , 3-5mA is good enough
though , generally , no special benefit of using there ref. chips with capability to work flawlessly at miniscule currents
as long all cases are on safety gnd , you can put thermistor wherever you want
though - for saving one wire in umbilical , you can place NTC in amp's case
though" - your sketch is wrong - audio gnd is on safety gnd , with NTC redundant ;
though - for saving one wire in umbilical , you can place NTC in amp's case
though" - your sketch is wrong - audio gnd is on safety gnd , with NTC redundant ;
Cool 🙂
And something else.
Is solid 1.5mm copper wire adequate for the power lines? I have some 2,5mm multistrand but it does not properly fit the pcb holes.
And something else.
Is solid 1.5mm copper wire adequate for the power lines? I have some 2,5mm multistrand but it does not properly fit the pcb holes.
avoid solid core connecting to pcbs , you'll have reliability issues in time
think about vibrations
regarding bigger wire - superfine loudsp wire is flexible and nice for task
see how :
Papa’s Koan (M)2 , an amp for living room | Zen Mod Blog
think about vibrations
regarding bigger wire - superfine loudsp wire is flexible and nice for task
see how :
Papa’s Koan (M)2 , an amp for living room | Zen Mod Blog
