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Old 24th February 2013, 02:35 PM   #1
PetruV is offline PetruV  Romania
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Talking PetruV's corner of the forum

Here i will cry for all my help, so i wont need to open a new thread.
All my questions will be posted here,mostly elecronics but you may also see something else from time to time!
So pile on!Also ask your own queastions here so me and the others can answer them!
I had a post like this before but it lost popularity since it wasnt properly named so here i go again,and as i said i wont open any other threads appart from this one
Go to the latest pages to see my latest problems and answers
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Old 24th February 2013, 02:38 PM   #2
PetruV is offline PetruV  Romania
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Ok right now im searching for a high power amp circuit which is rather simple and over 500w
I thought the apex b500 would do it but i also want to see some other possibilties
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Old 24th February 2013, 02:45 PM   #3
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ok .... TDA2003s were budget and low cost ... i build it before already ... but power were just too low and it was replaced by the 4channel LM1875 as i shown ... Other options were TDA2005H and also TDA2009A which also i build before and sounds great ...
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Old 24th February 2013, 03:35 PM   #4
PetruV is offline PetruV  Romania
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Quote:
Originally Posted by dannyjmf View Post
ok .... TDA2003s were budget and low cost ... i build it before already ... but power were just too low and it was replaced by the 4channel LM1875 as i shown ... Other options were TDA2005H and also TDA2009A which also i build before and sounds great ...
I have a 2003 kit and it sounds awesome but 1 out of 2 just outputs a very faint quiet and distorted sound and i dont know why ,
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Old 24th February 2013, 05:41 PM   #5
PetruV is offline PetruV  Romania
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Acualy some diferent tda2003 have this problem not the one on the kit sorry for messing up my words
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Old 6th March 2013, 08:01 PM   #6
PetruV is offline PetruV  Romania
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im making my plans to build a apex d200.2 with irfb4229 at 90v for a good amount off bass'with smps and 2 chanels integrated in a box not bigger than a cable box decoder

Last edited by PetruV; 6th March 2013 at 08:03 PM.
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Old 17th March 2013, 04:50 PM   #7
PetruV is offline PetruV  Romania
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Can you help me with and switch mode power supply circuit that is simple and outputs +/- 90v and simple to build and also includes pcb layout.
Please help me since this is very important
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Old 26th March 2013, 07:57 AM   #8
PetruV is offline PetruV  Romania
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I now need a schematic with pcb for a 50w amp
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Old 30th March 2013, 09:57 AM   #9
PetruV is offline PetruV  Romania
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Fixing an amp that integrates 2x tda2030 and one lm1875t,i was a no brainer that its problem was caused by a bad contact,but its been like that for years only using one channel,its time t fix it,and remove the high pass filters from the sattelites and remove the 4x 1 ohm resistors beetwen the sattelites and the amps output.
Any other tweaks you recommend,im very happy to fix this
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Old 30th March 2013, 10:28 AM   #10
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do you take advice ??? I f you do here is one ...

Trust me on this if you cannot understand why the TDA thing had a lot of distortion , if you listen to people that suggest TDA circuits for power over 500W then your available option is like that :

1) The chances that you successfully built an Apex 500 are very very very very very very very very very very LOW !
2) The chances that you successfully built an Apex 500 with a smps power supply are very very very very very very very very very very LOW ! and more
dangerous
3) expect the popularity of your thread to go even worst than the previous ...
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