Two Pots for One

[Phend]

Hello:
Weird question for comments,
Yes why not, I've the got room.
Needed : 1M linear Pot.
What if I use two 500k linear Pots in series to make the 1M requirement ?
More sensitive ? Or just plain weird ? Or RUNUTS ?

[BJM]

Depends on how you wire the pots I think. If you wire them as volume controls, with one lug to ground there's no practical use.

But if you've got the room, why not take a look at this post https://www.diystompboxes.com/smfforum/index.php?topic=127537.0 ?

[antonis]

For prorer teasing, plz post a wipers wiring schematic..

[dschwartz]

The best way is to modify the rest of the circuit so 500k works the same as 1M..
For example, if it is a filter, multiply the caps by 2, if it is a gain control on the feedback of an opamp, divide the shunt resistor by 2..etcetera

[Phend]

For prorer teasing, plz post a wipers wiring schematic.

Thanks, see upper right of the picture.

[antonis]

You can do it with a dual gang pot wired NOT as per your schematic (*), but better implement dschwartz's suggestion about R12, R10 & C9..

(*) 2nd pot should be placed between D2 anode & R13 wiper/lug3..

[Phend]

I see my original question of a 2 pot in series sub can become more complex depending on how they are used in a particular circuit. In the case of this Micro V circuit I should probably stick with the 1M pot least I breadboard the entire thing for testing the 2 pot modification.
See my attached update (which I am not sure about the direct connection between R14 and D2).
Note the changes to C9 R12 and R10. Further testing my armature skills at this time.
I suppose that in a circuit that is using 1 pot as a variable resistor then 2 pots in series might work if you need to fill an open hole with something.
Thanks for the comments.
Hope this exercise is of value for others.