im looking for anyone who can help build a special cable.want to power up mix pre 3 .want to take AA sled drill a whole and solder a cable to the coils or contacts. then terminate the other side of the cable(foot long) to a usb charger plug. any one able to help build this please contact me off this listing.direct emails to todd1965@verizon.net thank you. tired of this bullshit with sound devices.need to take solid action.
Are you sure that 5 volts from USB power will be sufficient to duplicate the 6 volts you get with 4 AA's?
The math indicates that it might be like running off a set of AA cells which are down to 1.25 v each, which is past the point I would start a recording, and might not be adequate for "high power" mode on the MP3?
I'd be curious to know how this works, but I'm skeptical overall.
Physically, it's a simple mod: drill a hole in the AA sled, and bust up a USB-A or USB-C cable and find the right wires and solder (or clip?) them onto the proper polarity connectors.