Raven Labs PHA-1

Raven Labs PHA1 power supply mod. For JP in CO. Serial #0007!!! OG units came w/no external power.
Steve Rabe himself modified it w / mini TRS power jack to be used with original Raven Labs bi polar power supply - no longer available. I modded Steves bipolar board to mono power jack like a vintage pedal & put a bipolar board inside. Unplug for battery use. The vintage 1/8 to Boss style adaptors come with most power supplys. I opened it up on 12 / 15 / 23...Steve signed it on 12 / 15 / 98 ..much love, respect & honor to walk in your footsteps , this one was special ❤️ RIP Steve Rabe
https://bassmagazine.com/true-genius-remembering-steve-rabe-and-swr/