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Old 21st November 2012, 10:52 AM   #21
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see this link and post youer comment :
Foros de Electrónica
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Old 22nd November 2012, 07:55 AM   #22
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Question circuit is correct?

Quote:
Originally Posted by mostafagordy View Post
see this link and post youer comment :
Foros de Electrónica


possible to replace BDX54C & BDX53C(hfe=750) WITH TIP36B & 2N3055 (hfe=20)
or not possile?
please help me to builde this project correct !!
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File Type: jpg tda2030 100w or 50w+50w.JPG (48.6 KB, 131 views)
File Type: jpg materiales circuit.JPG (66.4 KB, 128 views)
Attached Files
File Type: zip New Folder.zip (275.1 KB, 19 views)

Last edited by mostafagordy; 22nd November 2012 at 08:21 AM.
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Old 22nd November 2012, 08:53 AM   #23
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Quote:
Originally Posted by mostafagordy View Post
possible to replace BDX54C & BDX53C(hfe=750) WITH TIP36B & 2N3055 (hfe=20)
or not possile?
Yes. Possible.
TIP35/36 or TIP3055/2955 (or 2N...)...

I made quite a similar bridge with LM1875 and TIP3055/2955.
Very stable very powerfull, very nice sound. Haven't measured the THD yet, but so far looks promising.
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Old 22nd November 2012, 09:36 AM   #24
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Quote:
Originally Posted by palstanturhin View Post
Yes. Possible.
TIP35/36 or TIP3055/2955 (or 2N...)...

I made quite a similar bridge with LM1875 and TIP3055/2955.
Very stable very powerfull, very nice sound. Haven't measured the THD yet, but so far looks promising.
thank you for comment
my answer is possible to replace Drlingtons (BDX54C &BDX53C) WITH tip36 and 2n3055 with very low Hfe prameter and ......
?????
nice day ......
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Old 22nd November 2012, 12:50 PM   #25
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You want BDX53/54?
Or, you want TIP35/36?
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Old 22nd November 2012, 06:27 PM   #26
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I want TIP36B (PNP) & 2N3055 (NPN)
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Old 22nd November 2012, 06:31 PM   #27
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in this circuit (new folder.zip)TIP 36 & TIP35=Lower power output Amplifier?
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Old 22nd November 2012, 06:43 PM   #28
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Is OK...

But i would use:
TIP35 (NPN) and TIP36 (PNP)

Or:
2N3055 (NPN) and 2N2955 (PNP)

And not lower power...
Depends on your input voltage.
You want more power, use LM1875 and close to +/-30V supply.
Or TDA2050 (max. +/- 25V).
Same circuit OK.

Last edited by palstanturhin; 22nd November 2012 at 06:46 PM.
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Old 22nd November 2012, 06:55 PM   #29
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ok
but I want 100w+100w Streeo setup or 200w bridge so what is transistors ?
what is circuit revision (semiconductors - resistors - Capacitors and ....)
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Old 22nd November 2012, 07:09 PM   #30
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Quote:
Originally Posted by palstanturhin View Post
Is OK...

But i would use:
TIP35 (NPN) and TIP36 (PNP)

Or:
2N3055 (NPN) and 2N2955 (PNP)

And not lower power...
Depends on your input voltage.
You want more power, use LM1875 and close to +/-30V supply.
Or TDA2050 (max. +/- 25V).
Same circuit OK.
but
higher Hfe in Darlington Transistor = Higher Collector current=>Higher power output
(is it correct ?)
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