Hello, All; I am a new Moog forum member, and grateful owner of minimmod model D since 1981. With regular cleaning and some TLC my minimoog has seen many gigs and still works quite well. Recently the glide pot has acted up. Any value below 5 yields appropriate amount of glide; however above 5, Glide no longer operates at correct value and the pitch of moog just creeps upwared at agonizingly slow rate well beyond 10. I typically use glide at 4, max, so it is not a problem for most of my playing; however those dramatic portamento sweeps would be nice to have available. can anyone help with ways I can restore the glide function to the way the Moog folks intended? many thanks, Thor.
Any 5 Megohm taper potentiometer, with a 1/4" diameter and 3/8" length solid shaft will do.
BTW, the glide pot is one of only a few inside a Mini that is not an Allen-Bradley sealed type.
PS: Audio (exponential) taper, not linear.
Oops, forgot to write “audio” or “log” taper.
Thanks Kevin. 
Isn’t the 5M glide pot on a Mini a special taper? It is listed in the service manual as having a “No.1 taper”. While the other Mini pots are listed as either linear, audio or reverse audio.
That was one quality I always admired about a Moog. They designed the controls to be very usefull musically. I suspect a normal audio taper would have a different control curve?
Recommend cleaning/exersizing the original, if a suitable replacement is not available.
Figure 9-17 of the Minimoog service manual indicates it’s a “5M AUDIO.”
I’m not en electronics engineer but, I’m wondering…
Since it’s only for controlling glide times, a 5M linear one would most probably still work, right ? Wouldn’t the behavior of the knob simply be linear ? In other words, instead of having an exponential effect on glide times, from about the mid travel to full clockwise, it would rise constantly throughout the full travel of the pot.
Unless the design of the glide circuit absolutely requires a log pot in order to obtain all the available glide times (I doubt it) ?
Nope. 
With a linear pot, you’ll get all the range bunched up towards one end of travel, the other end not having much effect at all.
Almost all glide pots are audio taper.
Be thankful you are not replacing the filter emphasis pot - that one is 50K REVERSE AUDIO taper.
Linear and audio are pretty common, reverse audio not very common.
Thanks to all for your help; I’m having a hard time finding a 5 megohm audio taper pot for the minimoog D glide. Any contacts for obtaining this little dandy? thanks again
I´ve been adviced to get my glide pot from this place:
http://www.caesound.net/minimoogcontrolpots.aspx
But, they don´t seem to have the right 5k pot, right? I´ve asked them twice, but no one replies.
First of all, the one inside a Minimoog D for the glide is a 5M potentiometer, not a 5K.
Second, they have substituted a 1 Meg pot in place of the original 5 Meg (as noted on the bottom of that page). I would advise on getting a 5 Meg in order to be able to get the same time range of the original pot.
That potentiometer doesn’t have to be an expensive Honeywell industrial grade sealed type (which it isn’t, in the original Minimoog D anyway). It can be an Alpha, or any other brand as long as the value (5 Megohms audio taper) and shaft dimensions and length is the same.