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Old 15th January 2008, 12:36 AM   #1
digi01 is offline digi01  China
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Default Tone control pre-amp

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
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Old 15th January 2008, 12:42 AM   #2
digi01 is offline digi01  China
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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
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Old 15th January 2008, 01:15 AM   #3
paulb is offline paulb  Canada
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Air wiring - I like it.
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Old 15th January 2008, 05:55 AM   #4
impsick is offline impsick  United States
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air wiring, i love it!
digi post schematic ya?
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Old 15th January 2008, 06:20 AM   #5
digi01 is offline digi01  China
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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
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Old 16th January 2008, 02:59 AM   #6
cwteoh is offline cwteoh  Malaysia
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do you have any reference for your modification? how do you apply the 3 resistor into the schematics?
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Old 16th January 2008, 07:50 AM   #7
digi01 is offline digi01  China
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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
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Old 17th January 2008, 02:36 AM   #8
cwteoh is offline cwteoh  Malaysia
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great idea... but what if I want to remain the loudness? I think it is OK to put the switch for just in case?
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Old 17th January 2008, 02:59 AM   #9
huy5005 is offline huy5005  Canada
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How is the sound??
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Old 17th January 2008, 05:39 AM   #10
cwteoh is offline cwteoh  Malaysia
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I am working on it. I think the idea is good.
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