Recently acquired this lovely pedal from
@rossyamaha, as Ross pointed out to me the power socket polarity has been reversed at some point. (any reason for this change? a little perplexed why someone would do this)
Ross kindly sent me a polarity reversal adaptor and it works great with a 9.6 volt 200mA EHX power supply. I've not tested it yet, but is there any reason why it shouldn't work with my burkey pedal power (outlets at 9 or 12 volts @100mA centre negative) I basically want to avoid fucking up a pedal that sounds great. Help greatly appreciated.
Comments
Best to fix the socket properly. It would be wise to find out whether any other changes have been made, eg removing the reverse-voltage protection diode and resistor in the ACA-adaptor circuit - this is often done to use a PSA or other regulated 9V adaptor. If so this leaves only the shunt protection diode, and that can burn out…
If it was me I would return it exactly to stock including the ACA circuit, and use a 12V supply, which is how it was designed to be run.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
So you are saying once it has been rectified you can run it at 12 volts dc centre negative?
Explanation here ...
http://stinkfoot.se/archives/726
Yes, that's the closest to the original ACA spec as steamabacus said.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein