psu filters,ne555 protect & + 24v fan psu
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apex transistor protect issue
hi apex sir ,this protect not suitable for h900 at 45 v ac rms relay automatic off then on please tell me how to modify this protect circuit but dc sense is very good.i made four all have same problems. plz tell me how to fix.thanks.
hi apex sir ,this protect not suitable for h900 at 45 v ac rms relay automatic off then on please tell me how to modify this protect circuit but dc sense is very good.i made four all have same problems. plz tell me how to fix.thanks.
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hi, guys.
I have a question.
please answer me anyone.
I have two amplifier
1)2 nos apex b500 rail voltage is +55 0 -55v DC.playing in bridge mode in 4 ohms load.
2) 1 nos apex H900 rail voltage ia +110 +55 0 -55 -110 DC . playing in 4 ohms load .
so what is the difference between
1) audio quality ,bass response.
2) stability
I have a question.
please answer me anyone.
I have two amplifier
1)2 nos apex b500 rail voltage is +55 0 -55v DC.playing in bridge mode in 4 ohms load.
2) 1 nos apex H900 rail voltage ia +110 +55 0 -55 -110 DC . playing in 4 ohms load .
so what is the difference between
1) audio quality ,bass response.
2) stability
I think you put wrong resistor on negative side. 22k must be replace with 2k2 and 12k instead 1k2.
Regards
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wow h900 at 367 page,congrats apex and h900 diy people.................................367 seem a bunch of pages to back read,can somebody please help me find apex constant/regulated power supply.thanks
already tried the search this thread but no luck.
already tried the search this thread but no luck.
got it from this site.......................................Post Good DIY Audio Links here! - Diyaudiocart Forum
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hello sir apex,does the ckt prevent volt/current loses or dropping.thanks
it is possible to feed apex from two different transformers 1trafo 2x40VAC 200VA 2trafo 2x80VAC 900VA ????
that reduces hum at the output,preventing dividing gnd current flow through input cables. leave it as it is.
apex h900 amplifier speaker panelica output transistors and on the way burns instantly when bursting. Does this design really work? Irf540 Vds 100 volts. My power sopply + 113 +57 0 -57 -113 IRF540 direct on fire boom