can i use LM 386 chip for cmoy shematic amp?

ceplos · 11th November 2009, 12:27 PM

i want to make cmoy amp n i have all the part list except OPA 2132PA ic because its hard to find in my place .. can i just use Lm 386 ic on cmoy amp shematic?

Minion · 11th November 2009, 04:46 PM

You could use a LM386 for your headphone amp , of cource you know it has different pin designations so it won"t match up with the schematic and you will have to modify the circuit to use the LM386 .... the OPA2134 is a dual fet opamp were the LM386 is a single low voltage power amp so there will have to be quite a change in the circuit design andf you will need 2 LM386 for one OPA2134 .... the circuit will also be much more noisy with the LM386 so sound quality will suffer ....

if you want to stick to the original Schematic you can use more commonly available opamps , the TL072 will work so should the ne5532 ....

Cheers

Mooly · 11th November 2009, 05:21 PM

The answer is no... the LM386 is not an opamp as such.

ceplos · 11th November 2009, 05:26 PM

thanks for the help.. if i get TL072 can i simply follow the cmoy shematic instruction? or do i need adjustment such as capasitor, resistor n etc...? sorry iam beginer on this..

ceplos · 11th November 2009, 05:27 PM

thank you

Minion · 11th November 2009, 08:37 PM

If you use the TL072 you won"t have to change the circuit at all...

ceplos · 12th November 2009, 06:20 AM

thanks Minion!! you are realy2 helped me...

11th November 2009, 12:27 PM	#1
ceplos diyAudio Member Join Date: Nov 2009 Location: Selangor..	can i use LM 386 chip for cmoy shematic amp? i want to make cmoy amp n i have all the part list except OPA 2132PA ic because its hard to find in my place .. can i just use Lm 386 ic on cmoy amp shematic?

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11th November 2009, 04:46 PM	#2
Minion diyAudio Member Join Date: May 2006	You could use a LM386 for your headphone amp , of cource you know it has different pin designations so it won"t match up with the schematic and you will have to modify the circuit to use the LM386 .... the OPA2134 is a dual fet opamp were the LM386 is a single low voltage power amp so there will have to be quite a change in the circuit design andf you will need 2 LM386 for one OPA2134 .... the circuit will also be much more noisy with the LM386 so sound quality will suffer .... if you want to stick to the original Schematic you can use more commonly available opamps , the TL072 will work so should the ne5532 .... Cheers

11th November 2009, 05:21 PM	#3
Mooly diyAudio Member Join Date: Sep 2007	The answer is no... the LM386 is not an opamp as such.

11th November 2009, 05:26 PM	#4
ceplos diyAudio Member Join Date: Nov 2009 Location: Selangor..	thanks for the help.. if i get TL072 can i simply follow the cmoy shematic instruction? or do i need adjustment such as capasitor, resistor n etc...? sorry iam beginer on this..

11th November 2009, 05:27 PM	#5
ceplos diyAudio Member Join Date: Nov 2009 Location: Selangor..	thank you

11th November 2009, 08:37 PM	#6
Minion diyAudio Member Join Date: May 2006	If you use the TL072 you won"t have to change the circuit at all...

12th November 2009, 06:20 AM	#7
ceplos diyAudio Member Join Date: Nov 2009 Location: Selangor..	thanks Minion!! you are realy2 helped me...

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