Time to sell excess stuff. I've got several of these and these two were never used, NOS as they say....
Put a 250 pF cap across the low freq coil and you get 160M as well as 80-10 M. I use a few of these in balanced grid input service.
Both for $80 shipped or $40 for the MB-40 and $50 for the MB-150 shipped.
Check or MO is fine.
Chuck K1KW
reply to me at:
cdoneal@comcast.net