Grounding a Fuzz face...

[harkkam]

I searched everywhere but i cant seem to find the answer to my question.

Im building a dallas arbiter fuzz face.....with a positive ground. Now there are a few parts that have a down facing triangle....do i wire those parts and then solder them to a point....

What do I do about the rake looking icon....do I make a seperate ground for them?

Also when the slevee is facing me...it has two tabs, one to the left and one to the right of the sleeve. Now which one goes to the switch and which one gets the positive lead from the battery?

Thank you

[Radamus]

Let me preface with this: I don't really know what a positive ground is. I haven't needed that yet.

That being said, I'm pretty certain that grounds typically connect together. You can do this anyway you like so long as they're connected to the ground end of the battery or plug. I'm not sure why they sometimes use two different methods of noting things in one schematic. Usually those symbols are a national divide. I think Europeans typically use the rake shape. Capacitors are also mixed up between styles, too. But I don't know what that means in your case.

Hope that helps a little until someone more qualified can add.

[frankclarke]

All the grounds go together. The jack tip isn`t grounded, the other bit is.

[axg20202]

Do yourself a favour and check out the PCB layout and schematic for the FF at Fuzz Central - it will help you relate the physical layout to the schematic. Frank is correct that the grounds should all be common with each other. In the classic Fuzz Face (positive ground), all the points marked as ground connect to the +9v terminal of your power source. This is why you can't daisy chain a power adapter between a positive ground pedal like this one and a standard negative ground pedal - they need a separate power supply (you CAN daisy chain multiple pedals of the same power setup though, e.g. multiple positive ground pedals). If you are only using battery power (and one battery per pedal), you don't need to worry about it.

I assume you are also referring to the TRS (tip, ring, sleeve) input jack to switch the power on when inserting a jack? The jack 'tip' tab is the signal in connection and goes to the circuit input, the 'ring' connection goes to the positive terminal of the battery, the sleeve connection goes to the ground connection on the circuit board. Hence, when a mono jack is inserted, the jack plug itself completes the connection from positive terminal of the battery to the board grounds. The negative terminal of the battery should be connected to the 9V connection on the board. (on the usual negative ground setup, these last two connections are the other way round)