ChrisK's Series/Parallel Blender

[onederboy]

guitarnuts2.proboards.com/index.cgi?board=modules&action=display&thread=3863

I was looking at this schematic that ChrisK posted and after pondering over it for awhile, it looks to me that he may have gotten the series and parallel sides of the switch reversed. Maybe I'm just not reading it correctly. Any ideas?

[ashcatlt]

I've reviewed it several times so as not to indulge in some knee-jerk defensive mechanism, and I'm quite sure you're reading it wrong.

If you tell us what makes you think it's backwards, we might be able to help you see the light.

[onederboy]

I'd love to be able to understand this, thanks for the help.

I'm assuming that the side with the blue dot on each coil is the negative/ground side. It looks to me like the negative side of the downward pickup ends up connecting the positive side of the upward pickup and vice-versa in parallel mode.

I will admit that trying to read through the schematic with the blender wiring does tend to make my head spin. It's much easier for me to understand the simplicity of switch wiring in schematic form.

Thanks for your help.

[ashcatlt]

I'm assuming that the side with the blue dot on each coil is the negative/ground side.

There's your trouble.

I think (never asked, and it's a bit late now) that those dots are meant to represent magnetic polarity. This would make it hum-canceliling.

I know that there's no such thing as a "ground side" until it's wired to something else. This (I know from having read some of ChrisK's other posts) is why he's labeled it as "upwards" and "downwards".

If you look at it in the orientation supplied, you'll notice that the top wire of each coil goes toward "upwards" in the parallel position. Likewise, the bottom wire of each goes "downwards".

Normally, we'd hook the point with the arrow that says "Upwards" to the hot output, and the point where it says "Downwards" to ground. On the other hand, what if this were just a module which came before a "Phase" switch, or was meant for the two coils of an HB, and was going to feed a "Master S/P" switch?


PS - that "modify" button is WAY too close to the "quote" button.!!! I didn't actually end up changing anything in onederboy's last post, but only because my browser's "back" button worked correctly!!! That is, I changed it, and posted it, and had to "back" up, copy, and modify again to get it back to what you see today!

[onederboy]

Wow, I feel like a dummy now. If that'd just been an s/p switch, I would've figured it out with no problem. Thanks so much for the help. I'm working on an idea that was hinging on me figuring out this blender wiring.