So I haven't posted on here since 2018 and found this thread after looking at the BOM for MNats Variable + Phantom power supply board. I'm not ready yet because I don't know enough yet but having successfully built Lola and a blue stripe at the end of 2017/early '18 (and generally studying/self-educating since), I want to build an 1108 mic pre one day, which is why I was looking at that power supply board....
Forgive the naiveté of this question but if either the 317 and/or 78 are unobtainium by the time I get to the build, are there plenty of other options for power supplies? The fact that I'm asking that question probably indicates I'm not yet ready for the build. I'm well aware that but still want to get there someday.
Mouser no longer has tons of LM317HV (actually, 0, with a lead-time out into July). The non TI (TME) equivalent referenced earlier in this thread also now appears to be unavailable. But it looks like Mouser still has 1800 TL783s in stock at the moment, with an "End Of Life" notice on the listing.