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Old 14th February 2012, 09:29 PM   #11
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Old 15th February 2012, 10:26 AM   #12
Ryssen is offline Ryssen  Sweden
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I only see 2 connections for the power,how is it possible to get possitive and negative DC from that?
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Old 15th February 2012, 12:13 PM   #13
MrSlim is offline MrSlim  Canada
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Quote:
Originally Posted by Ryssen View Post
I only see 2 connections for the power,how is it possible to get possitive and negative DC from that?
What do you mean? The OP mentions a 18-0-18 transformer in an earlier post...
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Old 15th February 2012, 02:58 PM   #14
Ryssen is offline Ryssen  Sweden
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Yes thats strange,look at the picture beneeth the power switch theres a 2 pole
connection.
Click the image to open in full size.

Is there a schema of the PSU too?
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Old 15th February 2012, 05:42 PM   #15
kawo is offline kawo  China
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This package does not include transformers, 2 pole AC input via a switch on / off power .
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Old 15th February 2012, 05:44 PM   #16
kawo is offline kawo  China
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Old 15th February 2012, 05:52 PM   #17
kawo is offline kawo  China
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If you are using large of case, wiring OK, S / N can be more than 95dbm or over 100
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Old 15th February 2012, 06:27 PM   #18
Ryssen is offline Ryssen  Sweden
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So the 2 pole is for 220v(Or 110v)
No schema?
How big trafo do you recomend?
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Old 16th February 2012, 04:20 PM   #19
kawo is offline kawo  China
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Hi Ryssen
Thankyou!
220V or 110V is decision for Transformer , and 20VA+20VA was OK.
Have schema
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Old 16th February 2012, 10:03 PM   #20
MrSlim is offline MrSlim  Canada
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Quote:
Originally Posted by Ryssen View Post
I only see 2 connections for the power,how is it possible to get possitive and negative DC from that?
I just reread your question, and realized what you were having a problem with. You typically only connect two wires from the secondary of a transformer and only one side needs to be switched, thus the single pole switch. The full wave bridge creates the ground for the amp circuit.
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