Can someone explain this to me

[L.A. Moore]

I have a Prescription Electronics Yardbox. Sounds amazing. I plug my wah into my chain, the YARDBOX no longewr works correctly. I also have a Bassdrive that works fine with the wah.

What the hell is going on?

L.A. Moore

[speak_onion]

Originally Posted by L.A. Moore

I have a Prescription Electronics Yardbox. Sounds amazing. I plug my wah into my chain, the YARDBOX no longewr works correctly. I also have a Bassdrive that works fine with the wah.

What the hell is going on?

L.A. Moore

What wah? Where in the chain? What do you mean by "correctly?" It is possible that the buffer of the bypassed way, or the loading from the engaged wah is loading the Yardbox (fuzz pedal, right?) and causing it to act weird.

[bongomania]

Also if they share a power supply but have opposite polarity, then it's common for one or more units to not work right.

[L.A. Moore]

It's a dunlop bcb-100. By correctly I mean no effect major loss of volume. I'm powering my setup with an Furman spb-8 board. I've tried the YARDBOX before and after the wah. if I take the wah out of the chain it works fine again. Also, I took the power cord out of the yardbox and ran it on battery and it worked just fune.

P.S. I have no idea wha tall this means: "It is possible that the buffer of the bypassed way, or the loading from the engaged wah is loading the Yardbox (fuzz pedal, right?) and causing it to act weird.
"

[bongomania]

That last bit is about the in and out impedance of the various devices, but I doubt it is actually a relevant issue in this case.

Since you say it worked fine with the Yardbox running on a battery, that indicates what I suggested about the power supply polarity may be correct. Can you confirm the power supply polarity markings of each pedal? If they are not all identical, then it is very common for that to cause the types of problem you described. The only solutions are to (a) use isolated power supplies (i.e. not the Furman) or (b) use only pedals with matching polarity.

[L.A. Moore]

The yardbox has no markings. The wah uses a DoD style plug. I have a boss power supply somewhere I'll try that and see what happens.

[bongomania]

Originally Posted by L.A. Moore

The wah uses a DoD style plug.

A 1/8" male plug? That may be your culprit, DOD's plugs are tip+ which is the reverse of Boss plugs. Try taking the wah out of the chain, or powering it with an isolated supply.

[L.A. Moore]

I used the 9 volt battery type connecter and hooked it to the battery terminal on the wah, (and on the yardbox) . Still had the same problem. I'm heading to radioshack to get some stuff and I'll report back.

[bongomania]

Note that the battery-snap connected to the Furman is not the same as using a battery. The entire circuit of the wah is out of polarity with the other pedals, so they cannot share a common ground. If I'm on the right track here, the solutions will be (a) a battery in the wah, or (b) an isolated wall-wart supply for the wah.

[speak_onion]

Originally Posted by L.A. Moore

P.S. I have no idea wha tall this means: "It is possible that the buffer of the bypassed way, or the loading from the engaged wah is loading the Yardbox (fuzz pedal, right?) and causing it to act weird.
"

Wow, yeah; reading it back that makes no sense. I really bit the bullet on trying to phrase what I meant.

If the power thing doesn't work out, I'll try again, but if that solves your problem, then let's just never speak of this again.

[L.A. Moore]

So.......

I bought the dunlop power supply for the wah, and that didn't wok. so I hooked up my Bassdrive and the yardbox, again no effect, so I'm thinking the yardbox is backwards. Gotta run, I'll report more findings later.

[sonicvi]

The Yardbox uses PNP germanium transistors and uses a positive ground power supply. It needs a separate supply from your other effects.

[L.A. Moore]

Originally Posted by sonicvi

The Yardbox uses PNP germanium transistors and uses a positive ground power supply. It needs a separate supply from your other effects.

So I need a positive pole adaptor?

[sonicvi]

Originally Posted by bongomania

Note that the battery-snap connected to the Furman is not the same as using a battery. The entire circuit of the wah is out of polarity with the other pedals, so they cannot share a common ground. If I'm on the right track here, the solutions will be (a) a battery in the wah, or (b) an isolated wall-wart supply for the wah.

It's the Yardbox, not the wah. The adapter jack is positive tip on the wah but it's still wired for negative ground.

[sonicvi]

Originally Posted by L.A. Moore

So I need a positive pole adaptor?

Yeah. You can get adapters that change the polarity. They're probably easier to find than positive tip 2.1mm power supply. Either way the Yardbox needs to be on a separate power circuit than the rest of the pedals.

[L.A. Moore]

So what I'm asking here is, do i just need a seperate boss type wall wart, or one with a pos tip? (boss is neg tip)

[sonicvi]

Originally Posted by L.A. Moore

So what I'm asking here is, do i just need a seperate boss type wall wart, or one with a pos tip? (boss is neg tip)

Both, you need a separate supply that is positive tip (positive ground).

[L.A. Moore]

Damnit now I have to go back to radio shack.

[sonicvi]

Originally Posted by L.A. Moore

Damnit now I have to go back to radio shack.

Radio Shack has power supplies that have a polarity switch, variable voltage, and interchangable plugs.

[L.A. Moore]

Ok, so this leads me to yet another question, why does the yardbox work with the pedal board's power supply if the yardbox is used stand alone?