[Radioroslyn]

I like the Champ as the pri inductance in higher equaling better frequency response and the cost is about 1/3 less. I pulled out my micrometer and sized it up vs a K speaker I had laying around. Seems like it would drop in. Screw holes are on the button and should clear the fc.  If the choices where closer in specs or price I may have linked a different one. Yes the 2ndy impedance is about double what is need for the voice coil but it's difficult to find a 1 1/2 ohm 2ndy without using a mulitmatch transformer. That's when price goes up...

I don't say this to be argumentative but only to say that this will performer fine with some mismatch. For all of us retired guys that are looking for reasonable opt w/o spending $60+  I'd buy 1 if I had a set w/a 47,2A5,41,42, or 6F6 that had a bad opt.