8 Pin Potentiometer wiring

[408silverfox]

hello this is my first time asking. building an external volume control using an alpine rk27 50k stereo pot know about six pin pots for wiring but this has 8 pins what are the 2 extra for? thank you. 408 silverfox

 

[Pommie]

My guess would be that you've got a two gang pot with push on/off as well. For example.

Mike.
Edit. Or off could be fully anti-clockwise.

 

[rjenkinsgb]

Presumably one of these:

The middle three pins are the conventional terminals, as far as I can see - all the standard ones have the position for that extra one, but actual no pin - eg:

https://uk.farnell.com/alps/strk27102/potentiometer-20k/dp/1191722

So just ignore the extra pins to use it as a normal pot.

This is a more common style pot, that has a loudness tap - it's a fixed point near mid position along the resistance, which may help clarify the device concept:

 

[Pommie]

rjenkinsgb Never seen one like that before. By middle, I assume you meant left? And the pot you link only has six pins (but that could be a location artifact).

Mike..

 

[rjenkinsgb]

And the pot you link only has six pins

Yes, that's the commoner version without the "loudness" tap pin; it shows which are the conventional pins when the loudness tap is not fitted.

 

[408silverfox]

thank you for your reply. i will try that out. im mostly mechanical- automotive. will see how it goes

 

[AnalogKid]

Could be pcb mounting pins. Please post photos of your part.

ak

 

[408silverfox]

hello if you look 2 posts up by jrw, its the exact one i have includung

part number. its alps blue