I just had @Gregory work on mine. There is a thread below on the updates. I will post the serial # when I get back from biz travel. Definitely improved noise floor after the update.jbailey, IMO, any MX113 is a beauty, including yours.
Your dial configuration is like the bottom picture in my OP post above. The MX113 ran from 1971-1980, so there were changes in the production runs over those years. Maybe we should ask Ron C. or Roger Russell, himself, about these changes and the tuning capacitors used.
Dave
Caddy, your MX113 is showroom quality! Did you also have some issues with bleed-through, or am I confusing you with someone else (I haven't re-read your excellent thread yet)?
Dave
I control volume with a CR7 this isn't an issue since the MX113 volume control is more-or-less always set at the 1:00 position
I use wireless on-off controllers on all my vintage units. I keep all power switches "on" and let the controllers do the switching, as you do with you MX113. On-off switches seem to be the most prone to failure. I learned my lesson about those way back in the '80s with the (in)famous Carver C-4000 preamp.
Dave