[sdiy] Potentiometer suggestions.

[Seb Francis]

Cole Groff wrote:
> Okay.  For me it's either Alpha or Spectrol.  I'll have to decide that
> on my own.
>
> But, as for sizes.  What's the MOTM size?  I'll be making my front
> panels based on Oakley front panels, which are MOTM style.  What size
> pot will I need for this?  Or is the "mm" rating for the whole body,
> not the shaft?
>

The mm size is the body.  The shaft, well now that's a different matter 
.. this is the bit that will determine which knobs you will be able to 
use.  'MOTM' style generally uses big knobs that fit onto a round or 
D-shaft, either with a grub screw or collette fit.

The cheap metal shaft Alpha pots have splined shafts which aren't really 
suitable for these types of knobs.  Alpha also do cheap plastic shaft 
pots (the 24mm RV24AN series for example), but I don't have any 
experience with these.  Another one to consider for round shafts is the 
Omeg Eco pots.  These are also cheap and reliable (although you do get 
bad ones sometimes).

When comparing shaft knobs & pots, remember that they come in both 6mm 
and 6.35mm (1/4") and you can't mix the 2 sizes.

My advice would be to check availability of knobs you like before 
deciding on pots.

Seb