Mark, I just noticed several transformers listed here: http://amfone.net/Amforum/index.php?board=33.0 maybe one of them will serve your purpose. Rick/K5IAR Transformer needed: 1450 - 0 - 1450 @ 250-350ma. This will become a choke-input supply for the ART-13. Please reply off-list. Thanks to all. 73, Mark W1EOF _