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Old 20th June 2009, 11:32 PM   #1131
kscharf is offline kscharf  United States
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Default My Gainclone Project

Inside the power humpty dumpty.
I used three surplus power transformers in series to give 21-0-21 at 4 amps.
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Old 21st June 2009, 06:17 AM   #1132
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@ Igla

can you give show bass boost schematic for ur cmoy. i also made a headphone amplifier as a Mini3 clonehttp://kuldeep.biz/2009/06/mini3-ins...amplifier.html . i wish to add bass boost in this
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Old 21st June 2009, 09:36 AM   #1133
Igla is offline Igla  Slovenia
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No problem; here it is...
Regards
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Old 21st June 2009, 12:30 PM   #1134
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thanx for sharing, i guess its a low pass shelving filter.
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Old 21st June 2009, 12:52 PM   #1135
Igla is offline Igla  Slovenia
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I guess it is, but I'm not really familiar with active filter names.
I was just surfing the net for any other bass boost version but found nothing much.
Have any of you guys a schematic for a different aproach to get active bass boost?
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Old 21st June 2009, 12:58 PM   #1136
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Filter theory and Types - http://www.linkwitzlab.com/filters.htm
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Old 23rd June 2009, 05:35 AM   #1137
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Default DIY Mini3 headphone amplifier clone

its a 3 channel headphone amplifier with precision virtual rail splitter

http://2.bp.blogspot.com/_ff7S7z_e7b...h/100_2777.JPG

http://3.bp.blogspot.com/_ff7S7z_e7b...h/100_2779.JPG
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Old 26th June 2009, 08:37 PM   #1138
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Here is mine (lm3875)
Click the image to open in full size.
It is very small,but 'm stisfied
its power stage contains a transformator (150w),two bridge,and four cap (10,000 uf)
PCBs is very small
Click the image to open in full size.
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Old 26th June 2009, 10:11 PM   #1139
Pato666 is offline Pato666  Argentina
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lovely case!
I really like the case you built.

Nice design, thanks for sharing.
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Old 26th June 2009, 11:27 PM   #1140
kscharf is offline kscharf  United States
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Nice job.

Wow those rf chokes are HUGE!
What are they wound around?

What are the dimensions of the box?
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