apex, can i use 741 op-amp instead of TL072?
coz i'll try to incorporate step-driver using an op-amp and the main amp on a
single pcb🙂
coz i'll try to incorporate step-driver using an op-amp and the main amp on a
single pcb🙂
No, if you want use two single OP instead one dual, use two TL071 instead one TL072,
Regards
mane go alexan if you go to manila
i'm afraid we cannot build h900
but instead build b500 with tlo72 step driver all parts available
regards
oh sorry... i mean two 741's, got 6pcs. of it and thought i can use it instead of tl071.🙂
You must use MJE15033/MJE15032 for H900, but with B500 at lower rail voltage there are many TO220 drivers.
Regards
ok... i found four tl072 in my boxes,ill use it instead🙂 thanks a lot apex, been a great help for us who wanted a bit of power, and more power to you🙂
Apex..its my project B500...
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Sorry, this my images:
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I used HS with dimention 40cm x 7cm x 16cm. In test to drive speaker R-L 4 unit 15", each side 2 speaker 4 ohm with 50% volume...It's PA hot but I still can touch the HS...not so hot...😱. If in operasition PA so hot, I will add fan...Thanks Apex... your LOGO I will write in my box PA 😀
@Eesbiboi..
Thanks..I used cap genuin Philips 2 x 17.000uf/65-100VDC 😉.
http://upload.kapanlagi.com/h/20100601075525_elko_4c045a7d995d8.jpg
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nice work ...clean .... only a couple of things ...
transformer looks kinda small and also the heatsink of the predriver (s) will be better if screwd somewhere since constan transportation will make this fail .... and especially if its ment to be for PA use
transformer looks kinda small and also the heatsink of the predriver (s) will be better if screwd somewhere since constan transportation will make this fail .... and especially if its ment to be for PA use