David,
If you like the sound of your old cords, why not just get a 15 to 20amp 'adapter'. Shunyata make good ones (15 to 20amp or vice versa). I've used them ~ fit snuggly, good contacts and reasonably cheap too.
If you like the sound of your old cords, why not just get a 15 to 20amp 'adapter'. Shunyata make good ones (15 to 20amp or vice versa). I've used them ~ fit snuggly, good contacts and reasonably cheap too.