alembicbassman Posted August 19, 2009 Share Posted August 19, 2009 I've got a Korg Pandora PX4B that runs on 4 AAA cells, the optional PSU is rated at 4.5v 500mA. I've got a Sony PSU for my Discman which is 4.5v 700mA The plug and polarity match. Can I use the Sony PSU safely with the Korg unit? Quote Link to comment Share on other sites More sharing options...
BOD2 Posted August 21, 2009 Share Posted August 21, 2009 Yes. As long as the voltage (4.5 V) and the polarity of the connectors match, then the only remaining issue is the power required by the FX device and the power that the PSU can provide. In this case the PX4B requires 500mA and the Sony PSU can provide up to 700mA. The PX4B will only draw the current that it needs so as long as the PSU can provide more than is required then there will be no problem. However.... ideally the PSU should be a "regulated" type for best results - I don't know if the Sony one will be or not. The other issue you can sometimes have with "standard" PSUs is that they can add noise. It won't cause any damage if the PSU is not regulated, though, so you can safely try it out and see if it works ok. If it sounds good then it works ! Quote Link to comment Share on other sites More sharing options...
alembicbassman Posted August 22, 2009 Author Share Posted August 22, 2009 Thanks That's what I thought, it's been over 15 years since I did the electronics module of my astronomy degree. Quote Link to comment Share on other sites More sharing options...
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