I swear I saw a pushbutton that would work great for volume control. It looked like a regular round pushbutton, but the button itself was actually 2 buttons in one (two half-moon shaped pushbuttons). I know Happ has some square buttons that do this, but I want to stay with round buttons if possible.
If I remember correctly this "dual pushbutton" would fit in your typical 1 1/8" mounting hole.
Anyone else ever seen this? I can't seem to find it now that I'm upgrading to MAME .110 and can map Vol+ and Vol- to individual pushbuttons.
If anyone has a clue what I'm talking about please post a link for purchasing such a button. Thanks!