I'm building a monoblock stereo using the "30-watt hi-fi amp" in the back of the RCA tube manual. I was fortunate enough to locate the original Thordarson power transformer that is listed on the RCA amp's parts list. I'm trying to match it with a similar model Thordarson transformer (or an identical one, if i should be so lucky), but I am coming up dry on every search for specs on these transformers. I have found a two power transformers that could work, T-52285 and T-41562, but all the documentation I have searched through makes no mention of Thordarson xfrmrs using a T-XXXXX serial number. They are either T-XXXX or XXRXX, or something like that. Can anyone help me in gathering specs for a T-52285 or T-41562 Thordarson transformer? Or Thordarson transformer with a T-XXXXX serial?? This is driving me nuts!