FOR SALE: BC610 Tuning Unit model TU51. Very good condition. Has the original knobs. There are no modifications. Everything looks to be in very good shape inside and out. Has crystal socket, and also covers 5.0 to 6.35 MHz. Before anyone asks, no I don't have any of the others!
For picture and details see: http://www.af4k.com/radios.htm Available for $35.00 plus shipping