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Old 8th March 2011, 06:05 AM   #1
skipper is offline skipper  United States
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Default PWR XFMR wiring

Hi All,

I am rebuilding my Simple SE amp and I have a PWR XFMER question. I am using the Edcor PWR035 XFMR and thought I had taken enough pictures of how I wired it before taking it apart but apperentlly not From the Edcor schematics, it looks like the black and black/white wires are for the 115V power input and return. The two green cables I am not sure of. They do not show up on the schematic and they do not seem to be ground cables? If I ohm them to the chassis ground, it is an open circuit. Should these green wires be grounded?

Thanks!
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Old 8th March 2011, 02:04 PM   #2
rknize is offline rknize  United States
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Electrostatic shield? Are all of the other wires in the diagram accounted for?
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Old 8th March 2011, 03:47 PM   #3
skipper is offline skipper  United States
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No they are not. From the diagram, the ceter tap wire for the 370V and the 6.3V I have taped up since they are not used, these are shown in the diagram.
Besides the two green wires there are also a pair of grey wires that are not shown in the diagram. I have also taped these up since I do not know where they go?
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Old 9th March 2011, 02:28 AM   #4
chrisb is offline chrisb  Canada
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Quote:
Originally Posted by skipper View Post
No they are not. From the diagram, the ceter tap wire for the 370V and the 6.3V I have taped up since they are not used, these are shown in the diagram.
Besides the two green wires there are also a pair of grey wires that are not shown in the diagram. I have also taped these up since I do not know where they go?

I'd contact Edcor directly. I e-mailed them yesterday morning with a question on custom OPT winding, and got a reply back within about 10 minutes.
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Old 9th March 2011, 02:39 AM   #5
rknize is offline rknize  United States
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What I meant was, are there any wires shown in the diagram that are physically missing?
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Old 15th March 2011, 03:37 AM   #6
skipper is offline skipper  United States
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Guys,

Thanks for the replies, sorry for my late reply. After checking my purchase order, I realized that I actually ordered the 059 and not the 035. I did ask about the 50V gray wires as to what they would power but did not get a response back.
Thanks again!
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Old 15th March 2011, 04:17 AM   #7
rknize is offline rknize  United States
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That is a 50V@50mA winding that would typically be used for a negative bias supply. Often these are taps off of the main high voltage secondary, but here they have made it a separate winding (which is nice). You don't need it at all for the SSE.
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