[Heathkit] SB-300 receiver repair

[Glen Zook]

I had an LMO do a similar thing.  Basically, the lubricant had hardened on the "fingers" that "pile up" as you turn the dial.  Cleaned them with WD-40 and the problem went away.

Glen, K9STH

Website:  http://k9sth.com


--- On Tue, 12/1/09, tymekeepz at aol.com <tymekeepz at aol.com> wrote:

I am restoring a Heath SB-300 receiver and have found that the tuning dial hits a mechanical stop at 350 KHz instead of covering the rated 500KHz segment of the selected band. The part number for the LMO on the schematic is 110-13 but my LMO is a 110-32. Could someone tell me the models that the 110-32 is designed for and if the 350 KHz range can be expanded? I might also be interested in purchasing a 110-13 if the 110-32 can not be modified.