radrobgray Posted February 18, 2008 Report Share Posted February 18, 2008 i ordered one today and i just realized its going to have a 220/240v PT. I don't have it yet but when I get it can I just substitute the 220v/240v with a 120v PT with out a ton of trouble? Do they usually have the same specs short of the input voltage? i assume the fuse values will be different. I haven't received the schematics yet so i cant say whether or not the PT has 120V taps. i have some electronics experience, but not a ton, I've built a few pedals, etched some pcbs, and can read Schematics. This will be my first amp kit build any tips for stuff i should read up on, especially safety. heres the site Madamp its on the right side. thanks for the help, Rob Quote Link to comment Share on other sites More sharing options...
KeithHowell Posted February 18, 2008 Report Share Posted February 18, 2008 Yes you can substitute the power transformer with a 120v version, just as long as they both have the same power rating and output voltages. A lot of transformers do have both 220v and 120v inputs but you would have to check. Keith Quote Link to comment Share on other sites More sharing options...
Geo Posted March 5, 2008 Report Share Posted March 5, 2008 I think you'll get a much lower secondary voltage, since the primary is receiving about half as much voltage as it was designed for. This will drastically change your power amp and I doubt you'll be able to get the full power out of your tubes. If you can, return the PT for a refund and buy the right one. Quote Link to comment Share on other sites More sharing options...
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