Swapping an A/C Adapter

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FrankRoss

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Joined 2001
Most of my stomp pedals are daisy chained off of the Boss PSA120T A/C Adapter. Trouble is, I have the Electro Harmonix Small Clone Chorus which uses a different power jack.

What I'd like to do is replace the power jack on the Chorus with a Radio Shack "M" female jack so that the Boss A/C Adapter will plug into it.

I'm not certain if the difference in VDC and/or mA would cause a problem, and if it would, how would I compensate for it?


The Boss A/C Adapter is rated at 9V DC 500mA

The Electro Harmonix A/C Adapter is rated at 9.6V DC 200mA


I popped the hood of the Chorus and there is a resistor connecting from one of the terminals of the power jack lug (ground) directly to the circuit board. Do I need to change the value of the resistor in order to use the Boss A/C Adapter?


If it'll help, here's a link to the schematic:

www.tonepad.com/getFileInfo.asp?id=97


Thanks
 
F

FrankRoss

Member
Joined 2001
Thanks Eva.


I need a little help. I wired the coaxial power jack up but didn't get power. This is my first time using a coaxial jack, so I might have the lugs mixed up.


There are 3 lugs - Center Pin, Shell and another that I don't know the name of. Which is which (+, -, ?) ?
 
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