Using LM1036

Papageoff · 20th November 2004, 07:45 AM

Who has successfully used the LM1036?

Did you use a voltage divider on the input signal or run it straight through? If so, what gain did you decide on for the amp?

I know it isn't a great chip, but, I need the tone controls and the simplicity of the circuit. This is my first amp.

thanx,
geoff

roadkill · 20th November 2004, 08:58 AM

Hi Geoff,
The LM1036 is a good choice for simplicity, but it's SNR suffers. For sloppy constructors like me, that may be offset by the lack of pickup from signal wires going to the volume/tone pots! Anyway, here's a board I did using an LM1036. There are EAGLE schematics too.

http://www.diyaudio.com/forums/showt...820#post351820

I used an input amplifier with biasing to half-point, but the outputs of these are capacitor coupled to the 1036 without any extra biasing (1036 already has it). I'm not clear what you mean by amp gain.

-Jim

Papageoff · 20th November 2004, 08:53 PM

I sent you an email in response to your response to mine.

I just meant what did you set your amps gain to, and what did people do about the input signal being too high a voltage.

20th November 2004, 07:45 AM	#1
Papageoff diyAudio Member Join Date: Oct 2004 Location: Jax, FL	Using LM1036 Who has successfully used the LM1036? Did you use a voltage divider on the input signal or run it straight through? If so, what gain did you decide on for the amp? I know it isn't a great chip, but, I need the tone controls and the simplicity of the circuit. This is my first amp. thanx, geoff

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20th November 2004, 08:58 AM	#2
roadkill diyAudio Member Join Date: Jan 2003 Location: Fort Collins, CO	Hi Geoff, The LM1036 is a good choice for simplicity, but it's SNR suffers. For sloppy constructors like me, that may be offset by the lack of pickup from signal wires going to the volume/tone pots! Anyway, here's a board I did using an LM1036. There are EAGLE schematics too. http://www.diyaudio.com/forums/showt...820#post351820 I used an input amplifier with biasing to half-point, but the outputs of these are capacitor coupled to the 1036 without any extra biasing (1036 already has it). I'm not clear what you mean by amp gain. -Jim

20th November 2004, 08:53 PM	#3
Papageoff diyAudio Member Join Date: Oct 2004 Location: Jax, FL	I sent you an email in response to your response to mine. I just meant what did you set your amps gain to, and what did people do about the input signal being too high a voltage.