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bigjppop 25th December 2010 06:44 AM

Converting Simple SE to 230V operation
So I've recently moved to Germany and would like to convert my Simple SE to run off the mains voltage here (230 ish). I built using the recommended Edcor universal PT.

Since this is still my first, and only, DIY tube amp I just want to make sure I won't kill it (or myself and my family).

I just need to rewire the PT from parallel to series and then put in a fuse with half the amperage rating, correct? I'm pretty sure I used a 2A fuse at 110 so 1A for 230?

Also, when rewiring the primaries I'm assuming I just twist the two "extra" wires from the PT together and then tape/heatshrink/wire nut them off. Correct?

Thanks in advance for all the help!

rknize 26th December 2010 02:53 AM

You got it. Just make sure you phase them correctly. You want them to work together, not fight each other. There is usually a dot or some other indication of which color is in with direction. Hopefully you still have the diagram. If not, write down how you have it wired right now. With a meter you can then figure out the phasing and know how to wire it.

If you get it wrong, it will blow the fuse instantly.

bigjppop 27th December 2010 05:14 AM

Much appreciated.

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