hi andrew lebon,
nice work, can u take high quality images of ur amp and share it.
cant see mjl transistors.
what is the dc volt ur providing to amp?
thanks.
irvynejay,
h900 with dirty sound noticed on hi's
i try replacing the op amp but still sound is dirty, i then found a broken track see attachment,other builder better make their track heavier or thicker,now the amp is sounding very clean both channel are working sounding clean.
feeding 50-100hz no load the amp give me about 90vac,well i'm happy with that comparing to my old prevoius amp in ab lower power but higher heat dissipation,h900 is running very cool.
h900 with dirty sound noticed on hi's
i try replacing the op amp but still sound is dirty, i then found a broken track see attachment,other builder better make their track heavier or thicker,now the amp is sounding very clean both channel are working sounding clean.
feeding 50-100hz no load the amp give me about 90vac,well i'm happy with that comparing to my old prevoius amp in ab lower power but higher heat dissipation,h900 is running very cool.
Attachments
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apex,
hope one day you guide vertex builder,
three people i know already built kaylan,andrew,irvynejay
but without your guide,no success builder so far,
you promised to share this monster amp,
many builder are interested,many h900 builder awaits vertex,
sir miles please share vertex,next class h after h900
hope one day you guide vertex builder,
three people i know already built kaylan,andrew,irvynejay
but without your guide,no success builder so far,
you promised to share this monster amp,
many builder are interested,many h900 builder awaits vertex,
sir miles please share vertex,next class h after h900
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vertex heart breaker
hi engel dele pena
greetings SOMETIMES PROMISES ARE BROKEN repeated
requests to apex audio no answers you know jay and i tried every thing possible
even reverse engineering using crest 1001 schematic same result WHY POST
SOMETHING WHICH DOES NOT WORK and no answers SAD
WARM REGARDS
andrew lebon
hi engel dele pena
greetings SOMETIMES PROMISES ARE BROKEN repeated
requests to apex audio no answers you know jay and i tried every thing possible
even reverse engineering using crest 1001 schematic same result WHY POST
SOMETHING WHICH DOES NOT WORK and no answers SAD
WARM REGARDS
andrew lebon
vertex
I accept that i build the vertex amp as AB but sad to say it fails
it only produce very low power all mje15035/34 are heating up even no load and no input signal
offset is good and have clear audio but no power as i expected
adding 560r on feedback to ground power increase but just little bit
Dc servo i guess work because when ic remove offset is very high
I hope mile can give as a hint how to fix it it seems like vas is self oscillating
I accept that i build the vertex amp as AB but sad to say it fails
it only produce very low power all mje15035/34 are heating up even no load and no input signal
offset is good and have clear audio but no power as i expected
adding 560r on feedback to ground power increase but just little bit
Dc servo i guess work because when ic remove offset is very high
I hope mile can give as a hint how to fix it it seems like vas is self oscillating
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pls help me,
i was wandering to wind my own 80-40-0-40-80 20amper transformer,
so pls suggest me EI core size,bobin size,
and the wire no.
pls, hepl me out.
i was wandering to wind my own 80-40-0-40-80 20amper transformer,
so pls suggest me EI core size,bobin size,
and the wire no.
pls, hepl me out.
sir can pls help me?
i want to wind transformer which u told me.
i want all the specification. like EI core size, bobin size,n also the wire guege
i want to wind transformer which u told me.
i want all the specification. like EI core size, bobin size,n also the wire guege
hi andrew lebon.
did u check the chestas amp in full volume?
which is best h900 or cheshtas amp?
there are to220 (4) diodes in the chestas amp. the diode values were not print in the layout. what is the number of that diode?
thanks for ur coperation
did u check the chestas amp in full volume?
which is best h900 or cheshtas amp?
there are to220 (4) diodes in the chestas amp. the diode values were not print in the layout. what is the number of that diode?
thanks for ur coperation
hi nazirdigi
greetings
1 i used MUR 3060 ON MAKE
2 USE IRF1407 OR IRF 2807 I used irf1407
there is no best amplifier BAD MANNERS TO COMMENT ON ANYONES AMPLIFIER MAKE IT YOU WONT BE DISSAPOINTED
WARM REGARDS
andrew lebon
greetings
1 i used MUR 3060 ON MAKE
2 USE IRF1407 OR IRF 2807 I used irf1407
there is no best amplifier BAD MANNERS TO COMMENT ON ANYONES AMPLIFIER MAKE IT YOU WONT BE DISSAPOINTED
WARM REGARDS
andrew lebon