I've not used one before and the datasheets aren't clear on how they actually work. I'd like to use a rotary pot with an 'off' position on the counter clockwise side to turn off my circuit. It'll be a volume control (attenuator prior to audio amp) so I'd like to have it also switch the circuit on and off. I've looked at a few but for example the RV170SF:
**broken link removed**
With regard to this datasheet, when you turn it round CCW and into the switched position, does this close a switch between the wiper terminal and the OFF terminal, or does it close the ON and OFF terminals together? I need it to switch two independent terminals so I can use them to connect a battery to the rest of the circuit, independent of the normal pot terminals. I could use a push switch pot but I prefer the rotary concept. I suppose I could use a dual-gang rotary pot with switch and use the second gang to switch the circuit on and off, but there are fewer of them to chose from.