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Old 5th October 2012, 06:32 AM   #1251
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Patrick

can I use 1 pcs of high Ah car battery 12V + another 6V battery for two se sen channels
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Old 5th October 2012, 06:44 AM   #1252
MiiB is offline MiiB  Denmark
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You cant mix the supply of two channels, each need a seperate floating supply.
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Old 5th October 2012, 02:40 PM   #1253
EUVL is offline EUVL  Europe
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Spot on, MiiB.


Patrick
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Old 6th October 2012, 07:37 PM   #1254
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thank you
both of you
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Old 22nd October 2012, 10:07 PM   #1255
RollE2k is offline RollE2k  Sweden
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If running balanced and i have one +-18v PSU, should i just run +18v to positive phase and -18v to negative phase? and then paralleled over both channels?
Also, approx how much current would in total can i expect (per phase) if running 6x SK170's in CEN config?
Is it just six times IDSS which is TOTAL current draw per phase in that config?
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Old 22nd October 2012, 10:21 PM   #1256
NicMac is offline NicMac  Italy
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Quote:
Originally Posted by RollE2k View Post
If running balanced and i have one +-18v PSU.......
You need 4 supplies. Try to do your homework just a tiny bit.
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Old 22nd October 2012, 10:27 PM   #1257
RollE2k is offline RollE2k  Sweden
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Quote:
Originally Posted by NicMac View Post
You need 4 supplies. Try to do your homework just a tiny bit.
A +-18v supply is twin supply, which i thought would work. Too bad that you need two of them, since i have no room for that.
And sorry, if i don't have time reading through 26 pages of text.
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Old 22nd October 2012, 10:30 PM   #1258
qusp is offline qusp  Australia
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26 pages? well its in the build manual, BOM and schematic on the first page too....

its also not calling for a bipolar supply....

it needs a 17-18vdc floating supply for each phase of each channel, so 4 in total

Last edited by qusp; 22nd October 2012 at 10:41 PM.
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Old 4th November 2012, 06:24 PM   #1259
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Red face still working on it

I have built this sen circuit using P2P. I also still have problems with getting it to operate with both channels connected. I am using PCM1702s and the original circuit design. Must be in the player as If one channel is connected, it operates fine(the other channel with a 1K on it). When I connect both, the working channel get's "jittery" and the new channel has high speed modulated signal wave and half the amplitude of the working one. Have not put in the stopper yet. Thought it would be easier but still working on it.
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Old 4th November 2012, 08:03 PM   #1260
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Talking More info

Here is the physical layout of my attempt at P2P construction. Each channel draws 19.4 ma according to my DVM. Anything wrong with the layout? The wiring is correct! I see no oscillation on my 10mhz scope.
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