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Old 20th March 2007, 10:52 PM   #1
bcrazy is offline bcrazy  Norway
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Join Date: Oct 2005
Default input connection and ground on ucd 180

I am in the process of putting together my first amp.

How should i connect power ground and signal ground?

I planned on not connection power ground to chassis, is there any reason not to?

I use unbalanced rca inputs. What/where should i connect neg input and ground on the ucd modules?

Can i leave the ground pin on the ucd unconnected???

Should i keep the power ground (O volt) from the rectifers floating or do i need to connect it to chassis?

I use a 2x33V trafo with no 0 Volt line and 2 bridge rectifiers.

Advice needed.

some pictures:
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Old 20th March 2007, 10:54 PM   #2
bcrazy is offline bcrazy  Norway
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just need to show off this great tool
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Old 21st March 2007, 05:23 PM   #3
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Location: Colorado and France
Use double insulation transfo and parts and distances. Neg input and ground to the chassis. Floating PS, floating AC ground.

http://www.diyaudio.com/forums/showt...ht=#post767515

http://www.diyaudio.com/forums/showt...ht=#post736222

http://www.diyaudio.com/forums/showt...ht=#post673418

You can do a search for putzeys (partial name) and RCA.

Alternative is to use the standard grounded box, but I don't have links to offer for that.

Guy
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