I built the Korg preamp in my own chassis and wanted to add remote volume control to it.
I saw the Alps version from Bent Audio and wanted to incorporate it, but want to know the best way to get 9V DC to power the device.
I currently have a CapMX power supply and adjusted the voltage to 24V to run the Korg. The website for the Bent Audio device says between 8 and 24V dc but then the manual states 8 to 18V. Regardless, I would like to know the best way to get 9V off of my power supply?
http://www.bentaudio.com/index2.html
I saw the Alps version from Bent Audio and wanted to incorporate it, but want to know the best way to get 9V DC to power the device.
I currently have a CapMX power supply and adjusted the voltage to 24V to run the Korg. The website for the Bent Audio device says between 8 and 24V dc but then the manual states 8 to 18V. Regardless, I would like to know the best way to get 9V off of my power supply?
http://www.bentaudio.com/index2.html
How much current is needed at 9V? Might not an LM7809 do the job? Would probably need good heatsinking though.
The board appears to have a 3-pin regulator on it; most likely 5V. An LM7805 can handle 24V, but the caps probably aren't rated high enough, hence the lower recommended limit for the board. I think a simple 15V 2W zener and resistor to limit the current to around 50-100mA would work fine. The manual says it only draws around 25mA when the motor is powered.