can we see the pic of the transformer
regards
sekhar
why do need such amp rating for ur transformer........ can we have a look at the pictures of ur transformer
regards
sekhar
![SDC10125 [800x600].jpg](/community/data/attachments/163/163228-0c72d5a274ec6eac86d3cc70093602c8.jpg?hash=DHLVonTsbq)
![SDC10129 [800x600].jpg](/community/data/attachments/163/163232-e1e713aaa62a239c6b2a826c13872613.jpg?hash=4ecTqqYqI5)
![SDC10131 [800x600].jpg](/community/data/attachments/163/163235-eab076933db1fa8dbdbf0d1b54883485.jpg?hash=6rB2kz2x-o)
![SDC10134 [800x600].jpg](/community/data/attachments/163/163245-ec1e38e24cc36dbc493faca8f487f986.jpg?hash=7B444kzDbb)
![SDC10133 [800x600].jpg](/community/data/attachments/163/163242-53b3a507fcf46436f76f17fb58eebbf1.jpg?hash=U7OlB_z0ZD)
![SDC10132 [800x600].jpg](/community/data/attachments/163/163240-a4d8f939b8439acf29ffb0fbcdd3b494.jpg?hash=pNj5ObhDms)
![SDC10135 [800x600].jpg](/community/data/attachments/163/163251-b6f9bad450f8b3c5c65e664d75d34bdf.jpg?hash=tvm61FD4s8)
![SDC10138 [800x600].jpg](/community/data/attachments/163/163256-a29bd5ff45502d2192ace4f226bc56dd.jpg?hash=opvV_0VQLS)
![SDC10139 [800x600].jpg](/community/data/attachments/163/163260-b7f7ff8bcb50f5f72e13be17cb80b86a.jpg?hash=t_f_i8tQ9f)
dc on output
apex...
sir... i powered on my b500 circuit...
i had dc on output about 7v...
i put 2 330ohms 10watts resistor on xformer primary...
power trannies seemed to warm up...but dc occur on output...hum on spkr...no audio on output...
what seem to be the problem???...
pls help...
tnx...
regards...
apex...
sir... i powered on my b500 circuit...
i had dc on output about 7v...
i put 2 330ohms 10watts resistor on xformer primary...
power trannies seemed to warm up...but dc occur on output...hum on spkr...no audio on output...
what seem to be the problem???...
pls help...
tnx...
regards...
Do not connect speakers if you have DC on output. If you not forget to connect wire jumper (red line) on botom side of pcb or GND on input with separate wire from PSU, try to measurment voltage on point as I suggest,
Regards
Last edited:
i removed spkrs from amp...i already hve separate wire fromm input to ground of psu...w/c post can i see your voltage suggestions???...
It's same as for H900 post #405 in thread:
http://www.diyaudio.com/forums/solid-state/162408-900w-h-class-pa-amp-limiter-41.html
Regards
I also had DC voltage about 8V, when start amplifier first time,
but when I turn it on after few seconds again voltage was -35mV.
And now is 35-40mV and amplifier works ok.
but when I turn it on after few seconds again voltage was -35mV.
And now is 35-40mV and amplifier works ok.
7vdc on output doesnt decrease...stays as it is as it was first turned on...
output trannies turn on hot in less than a minute...
@esobi
how much the cost of the power transistor you buy? where you want to used the amp for sub woofer?
how much the cost of the power transistor you buy? where you want to used the amp for sub woofer?
i bought those trannies for less than 80pesos each...
im planning to use them for mids...hope to finish this project...
im facing some kinda' prob here...i still dont know what to do...
Post some pictures if you can.
Look at GND wiring.
What voltage are you using for this amplifier?
Look at GND wiring.
What voltage are you using for this amplifier?
i took pics this morning
i used my fon to capture images
i guess its not that clear...
Attachments
hi eesbiboi
greetings how much power do you use for mid and what type
of speakers do you use
thanking you
andrew lebon😀
greetings how much power do you use for mid and what type
of speakers do you use
thanking you
andrew lebon😀