Suggestion for RH DESIGNS ZONEMASTER IIm Power Supply

[amellice]

Hi, I've RH DESIGNS ZONEMASTER IIm and was looking for a power supply. It says 9V DC at 100mA. I've having hard time finding such power supply. The closest I've come is these power supplies used to power guitar pedals. Would they work or will they fry it?

 

[Deleted member 88956]

Key is correct polarity, correct voltage and MIN indicated amperage. So in your case you have one that says 9V / 300mA, that's fine, in fact better than 100mA. I would in fact go even higher like 500mA. But check polarity. It should be shown on Zonemaster at power socket and needs to be same as one you see on PS (center negative on your PS, but maybe the other way around on Zonemaster )

 

[albada]

You might ask RH Designs to sell you a replacement. Here's how to contact them through their website:
https://rhdesigns.co.uk/contact-us/

Mark Overton

 

[amellice]

Key is correct polarity, correct voltage and MIN indicated amperage. So in your case you have one that says 9V / 300mA, that's fine, in fact better than 100mA. I would in fact go even higher like 500mA. But check polarity. It should be shown on Zonemaster at power socket and needs to be same as one you see on PS (center negative on your PS, but maybe the other way around on Zonemaster )

So I think from their manual, seems that what I have should work since the center pin is positive

For optimum performance and reliability we suggest you use only a regulated DC power supply capable of supplying 7.5v or 9v at 100mA. If you have a suitable power supply it should be set to 7.5v or 9v DC, centre pin positive, and the connector is a 2.1mm type.​

 

[Deleted member 88956]

So I think from their manual, seems that what I have should work since the center pin is positive

For optimum performance and reliability we suggest you use only a regulated DC power supply capable of supplying 7.5v or 9v at 100mA. If you have a suitable power supply it should be set to 7.5v or 9v DC, centre pin positive, and the connector is a 2.1mm type.​

No You have center pin negative.

THIS will work well. It has 1A rating even better. You see a choice of center polarity, make sure you choose center-positive when ordering.

 

[amellice]

No YOu have center pin negative.

THIS will work well. It has 1A rating even better. You see a choice of center polarity, make sure you choose center-positive when ordering.

Thank you so much for your help.