Line 6 PX2 supply

Started by DanD, August 25, 2005, 08:26:59 AM

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DanD

Does anyone have a PX2 and an O-Scope?  I'd like to see a capture of the output waveform.

I just bought an MM4 and want to make sure my DIY 9vac supply is close enough in output to Line 6's.

Thanks.

Johan

the PX-2 is simply a 9VAC 2A psu/transformer ( 18watt )..nothing else...
if your diy device meets those specs, it's close enough...

johan
( working my last day as a repairman for a Line-6 distributor tomorow...)
DON'T PANIC

PharaohAmps

Johan is right - the PX-2 is just a transformer, no load cap, rectification, regulation, etc.  Just a transformer with cords soldered to it in a plastic box.

Radio Shack has a decent substitute for it, 9VAC at 1300mA I think, just solder a 2.5mm barrel plug on it.  I think that I measured current consumption from my MM-4 at around 250mA max, so anything over that should be okay.  The RS 400mA 6-0-6 transformer would work fine if you want to DIY.

Matt Farrow
Pharaoh Amplifiers
http://www.pharaohamps.com

Johan

Quote from: PharaohAmpsJohan is right - the PX-2 is just a transformer, no load cap, rectification, regulation, etc.  Just a transformer with cords soldered to it in a plastic box.

Radio Shack has a decent substitute for it, 9VAC at 1300mA I think, just solder a 2.5mm barrel plug on it.  I think that I measured current consumption from my MM-4 at around 250mA max, so anything over that should be okay.  The RS 400mA 6-0-6 transformer would work fine if you want to DIY.

Matt Farrow

the benefit of using a transformer with higher current rating is that it wount stray off too much. when not pulling the full currentcapacity of the transormer, lower rated ones tend to stray upward ( just mesure the voltage without a load...its not unusual to mesure 12-15 volts...)and the AC-input on the stompmodelers are a little sencitive..there is a 3,6volt/1w zener that tends to go with overvoltages... ( D16 on the PCB )
..but still, almost any 9vac transformer should work..

johan
DON'T PANIC

BDuguay

I bought the proper Line 6 adapter for my Delay Modeler for a ridiculous sum of $26.00
Later I found a couple of adapters  for a Nintendo game at the local re-use center. They were rated 9VAC @1300ma. and work fine.
Total cost or both of them.....
2 bucks.
B.

DanD

I should be in good shape.  Thanks for the info.

stumper1

From Visual Sound's web-site FAQ:

How does the 1 SPOT work with Line 6 modeling pedals? Don't they require AC and use 1200mA of current?

Well, it does say "9VAC 1200mA" on the back of the Line 6 pedals, but they don't really use that. That is simply the output rating of the POD adapter which the modeling pedals also use. If you think about it, the Line 6 pedals take batteries, don't they? Batteries are DC, not AC, so the pedals must really run on DC voltage. So how do they work with a 9VAC POD adapter? The modeling pedals have a bridge rectifier at the power input jack which immediately converts AC to DC where the adapter plugs in. And regarding the 1200mA of current the pedals are supposedly using, it's really more in the range of 350mA. That's still more than an average adapter can handle, but the 1 SPOT can handle two Line 6 pedals and have plenty of juice left over for several ordinary stomp boxes. Why Line 6 didn't come out with a separate adapter for the modeling pedals, I don't know, but the 1 SPOT makes an excellent alternative to the bulky single-purpose POD adapter.


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