Hey guys, my friend has what appears to be an original 80's (sticker inside says #43 3/11/81) DOD phasor 401 and it's just not working. Before I start to dig around in it I wanted to see if there was a common problem with these that anyone knew about. I searched on here and nothing was really on the 401. Thanks
The phasor is the same circuit as the MXR Phase 45, with different component values. That might help you get started, there's a lot of topics on this forum about the phase 45.
Good luck!