12-30-2015, 02:29 PM
Rick, I have not worked on one of these so my advice is general. I may have misunderstood the problem. I thought it was the band switch that would not rotate fully. Are you saying its the tuning dial that has a problem. If so, look at this on Chucks site. It doesn't specifically say 665, but I'll bet there will.be useful info there. Other tips from Chuck:
http://www.philcorepairbench.com/tips/svctips.htm
http://www.philcorepairbench.com/tips/svctips.htm