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Old 9th November 2010, 03:06 AM   #801
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yes but still i cant find kse too ..anymore substitute for this i realy want to test this project
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Old 9th November 2010, 03:27 AM   #802
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Quote:
Originally Posted by apexaudio View Post
This is maximum voltage, I suggest to use transformer 4x35-40v ac.
Regards
apex,
thanks
i will add maybe 20turns in my primary in order to subtract about 10v.
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Old 9th November 2010, 11:06 AM   #803
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apex,
if I add turn to primary,18-0-18 also drop voltage,
can I add more output?how many pair? for 96-48-0-48-96 ac
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Old 9th November 2010, 11:14 AM   #804
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apex,
by the way tlo step is working,
temporary I use step down transformer,(to step down 96-48-0-48-96 ac primary)
and the result is better,better bass more power (and still clean sound)and most important it is not dissipating heat as before(class ab b500) w/o step driver,i'm amased with this class(h),
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Old 9th November 2010, 11:33 AM   #805
sekhar is offline sekhar  India
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Quote:
Originally Posted by irvynejay View Post
yes but still i cant find kse too ..anymore substitute for this i realy want to test this project
u can use 2sa1837 & 2sc4793 instead of mje340 and mje350


regards
sekhar
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Old 9th November 2010, 02:15 PM   #806
noobie is offline noobie  Philippines
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apex,

two 4700uf/50v caps in series=4700/100v?

thanks

regards
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Old 9th November 2010, 02:26 PM   #807
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two 4700uf/50v X 2 in series is 2300uf/100v

thanx..
__________________
jon
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Old 9th November 2010, 03:03 PM   #808
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Default Mje

Quote:
Originally Posted by sekhar View Post
u can use 2sa1837 & 2sc4793 instead of mje340 and mje350


regards
sekhar
Ty B500 is working now,ill post some picture when already in place,but i notice lower volume seems to be distorted or something..
My trafo 55 0 55 25amp ,32 0 32 25amp
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Old 9th November 2010, 04:19 PM   #809
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Default step drive component replacements

Quote:
Originally Posted by engel dela pena View Post
apex,
by the way tlo step is working,
temporary I use step down transformer,(to step down 96-48-0-48-96 ac primary)
and the result is better,better bass more power (and still clean sound)and most important it is not dissipating heat as before(class ab b500) w/o step driver,i'm amased with this class(h),

engel sir...

can you please tell me which components of step drive available here in our country???...
which components are hard to find???...
and what are the components that needs replacements???...
for i am thinking of building sir apex' h class using tl072 step drive...

thanks
regards

ees...
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Old 9th November 2010, 07:24 PM   #810
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Dear ,
I need to get 250 watt RMS @8 Ohm from P500 , what is suitable voltage ( +/- )must I used ?

Sinan Edmond
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