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 29th February 2012, 08:47 PM #11 tauro0221   diyAudio Member   Join Date: Nov 2008 Location: Victoria,TX Hi, What it is the Ac input voltage for the transformer? Maybe your using a 120 volts AC input transformer in a 220 Ac.
 29th February 2012, 08:49 PM #12 pdul   diyAudio Member   Join Date: Jan 2009 Location: Copenhagen Maybe you have connected the trafo wrong. Are you shure you have measured both rails ?
 29th February 2012, 08:52 PM #13 Andy Bartha   diyAudio Member   Join Date: Sep 2004 Location: Oregon Measure the AC voltage going to the bridge. If the AC voltage more than 20 something than you are using 18v to 18v taps for a total of 36v. Wire up the transformer from one of the 18v taps to the 0v center tap. This will drop your voltage by half since you are only using one of the two winding available.
SLAK
diyAudio Member

Join Date: Feb 2012
Quote:
 Originally Posted by tauro0221 Hi, What it is the Ac input voltage for the transformer? Maybe your using a 120 volts AC input transformer in a 220 Ac.
No, Here in My city it is hard to find a Transformer with primary 120volt, I am 100% sure that the Ac input for my trans is 220v because i needed it that way.

SLAK
diyAudio Member

Join Date: Feb 2012
Quote:
 Originally Posted by pdul Maybe you have connected the trafo wrong. Are you shure you have measured both rails ?
Connection is Correct,, Yes i have measured both the rails.

Plz let me check again

Last edited by SLAK; 29th February 2012 at 09:12 PM.

SLAK
diyAudio Member

Join Date: Feb 2012
Quote:
 Originally Posted by SLAK Connection is Correct,, Yes i have measured both the rails. Plz let me check again
My Bad.... It seems i made a mistake while making the connections, Connection was as Shown below.

Trans AC1 (18v) -------->> PCB AC1 in
Trans 0volt -------->> PCB AC2 in
Trans AC2 (18v) -------->> PCB 0v in

Now i have disconnected the bad connections. Before I make the correct connections, does any one think that i might have some how damaged the transformer because of the bad connection???

 29th February 2012, 09:26 PM #17 Andy Bartha   diyAudio Member   Join Date: Sep 2004 Location: Oregon Transformer should be fine
SLAK
diyAudio Member

Join Date: Feb 2012
Quote:
 Originally Posted by Andy Bartha Measure the AC voltage going to the bridge. If the AC voltage more than 20 something than you are using 18v to 18v taps for a total of 36v. Wire up the transformer from one of the 18v taps to the 0v center tap. This will drop your voltage by half since you are only using one of the two winding available.
My Bad.... It seems i made a mistake while making the connections, Connection was as Shown below.

Trans AC1 (18v) -------->> PCB AC1 in
Trans 0volt -------->> PCB AC2 in
Trans AC2 (18v) -------->> PCB 0v in

Now i have disconnected the bad connections. Before I make the correct connections, does any one think that i might have some how damaged the transformer because of the bad connection???

SLAK
diyAudio Member

Join Date: Feb 2012
Quote:
 Originally Posted by Andy Bartha Transformer should be fine
Thats good to know, so should i be worried about some faulty component.

 29th February 2012, 09:33 PM #20 pdul   diyAudio Member   Join Date: Jan 2009 Location: Copenhagen What is the voltage of your capacitors?

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