Transistor Sister? Reminds me......what did they call the transsexual Nun?
Yep, you fingered it out, a TranSister! Yuck yuck yuck.
Don't feel bad about paying as much as you did for that radio, it's all about rarity and condition. It may be a long time till you find another radio like that and it surely won't be in as nice a shape.
Strike while the iron is hot! You done good.
So you're a Hoosier now, eh? Anywhere near South Bent? I'm cracked on them there Studebakers! (and cracked in most every other way too)
Anthony