QUASI Amplifier for Beginners - Page 3

electra_ina · 31st May 2010, 06:20 AM

I have alot of 2N3773 (it's 2nd). Thanks APEX..i will built it...

bobodioulasso · 31st May 2010, 06:50 AM

Quote:

Originally Posted by apexaudio

That will increase crosover distortion

Of course, adding the baxandall diode implies adding a third diode into the biasing strip.

apexaudio · 31st May 2010, 08:36 AM

Quote:

Originally Posted by bobodioulasso

Of course, adding the baxandall diode implies adding a third diode into the biasing strip.

Many improvments can be done on this amp, but I want keep basic schematics, work great like old Dynacord. Many amplifier based on this schematics was made latter.

apexaudio · 31st May 2010, 07:31 PM

PCB size: 110x105mm

bobodioulasso · 31st May 2010, 07:54 PM

You are a real diyer's gold mine.

eesbiboi · 1st June 2010, 08:39 AM

apex
sir, can i used 4 pairs of 2sc2922 instead of 4pairs of 2n3773???...tnx...

apexaudio · 1st June 2010, 09:20 AM

Quote:

Originally Posted by eesbiboi

apex
sir, can i used 4 pairs of 2sc2922 instead of 4pairs of 2n3773???...tnx...

Yes, 2SC2922 is better than 2N3773,
Regards

mane · 1st June 2010, 10:24 AM

hi apex, can i use TIP's?

apexaudio · 1st June 2010, 12:50 PM

Quote:

Originally Posted by mane

hi apex, can i use TIP's?

TIP35C can be used with +/-45V DC rail voltage or
TIP3055 with +/-35V DC rail voltage, two pairs is enough,
Regards

eesbiboi · 1st June 2010, 01:17 PM

Quote:

Originally Posted by apexaudio

Yes, 2SC2922 is better than 2N3773,
Regards

how much power can i get with these pairs in full supply...say +-65dc???...
tnxxx...

1st June 2010, 08:39 AM	#26
eesbiboi diyAudio Member Join Date: Apr 2010 Location: cebu, philippines	2sc2922 apex sir, can i used 4 pairs of 2sc2922 instead of 4pairs of 2n3773???...tnx...

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31st May 2010, 06:20 AM	#21
electra_ina diyAudio Member Join Date: Mar 2009 Location: Near Jakarta	I have alot of 2N3773 (it's 2nd). Thanks APEX..i will built it...

31st May 2010, 07:54 PM	#25
bobodioulasso diyAudio Member Join Date: May 2008	You are a real diyer's gold mine.

1st June 2010, 10:24 AM	#28
mane diyAudio Member Join Date: Jul 2007	hi apex, can i use TIP's?

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