Tone control pre-amp

digi01 · 15th January 2008, 01:36 AM

I think tone control is a useful function for different source listening.I find some pieces lm1036 in my drawer.So I do a fast air wiring.
This is my first building of the year begining.Its working perfect with 4780nigc.

Zang

digi01 · 15th January 2008, 01:42 AM

I build it air wiring.
the RCA do not isolated with chassis and there a big grounding plate.this way is ok for pre-amp,damn quiet

paulb · 15th January 2008, 02:15 AM

Air wiring - I like it.

impsick · 15th January 2008, 06:55 AM

air wiring, i love it!
digi post schematic ya?

digi01 · 15th January 2008, 07:20 AM

Thank you.

I build it basis on typical application.I fixed the balance control with 3 resistors.
http://www.national.com/mpf/LM/LM1036.html

Zang

cwteoh · 16th January 2008, 03:59 AM

do you have any reference for your modification? how do you apply the 3 resistor into the schematics?

digi01 · 16th January 2008, 08:50 AM

refering the nsc's typical application,http://www.national.com/images/pf/LM1036/00514203.pdf

the modification attached.
i removed the balance and loudness function,because it is no sense for up-to-date recording.and imho lm1036 is not design for professional audio gear.it is only one available chip,but not nearly perfect.

i will do something better.

z

cwteoh · 17th January 2008, 03:36 AM

great idea... but what if I want to remain the loudness? I think it is OK to put the switch for just in case?

huy5005 · 17th January 2008, 03:59 AM

How is the sound??

cwteoh · 17th January 2008, 06:39 AM

I am working on it. I think the idea is good.

15th January 2008, 06:55 AM	#4
impsick diyAudio Member Join Date: Dec 2006	air wiring, i love it! digi post schematic ya? __________________ "Nothing happens for a reason. There are just reasons why things happen." Quote me on that. http://stores.ebay.com/AudioGrade?_rdc=1

15th January 2008, 07:20 AM	#5
digi01 diyAudio Member Join Date: Mar 2003 Location: BEIJING	Thank you. I build it basis on typical application.I fixed the balance control with 3 resistors. http://www.national.com/mpf/LM/LM1036.html Zang __________________ 2010 DIY ALBUM UPDATED UCPv1(preamp) & DUAL(power supply)

16th January 2008, 03:59 AM	#6
cwteoh diyAudio Member Join Date: Sep 2003 Location: Penang, Malaysia	do you have any reference for your modification? how do you apply the 3 resistor into the schematics? __________________ Regards, C.W. Teoh

17th January 2008, 03:36 AM	#8
cwteoh diyAudio Member Join Date: Sep 2003 Location: Penang, Malaysia	great idea... but what if I want to remain the loudness? I think it is OK to put the switch for just in case? __________________ Regards, C.W. Teoh

17th January 2008, 06:39 AM	#10
cwteoh diyAudio Member Join Date: Sep 2003 Location: Penang, Malaysia	I am working on it. I think the idea is good. __________________ Regards, C.W. Teoh


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15th January 2008, 02:15 AM	#3
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	Air wiring - I like it.

17th January 2008, 03:59 AM	#9
huy5005 diyAudio Member Join Date: Dec 2007	How is the sound??

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