Link neither worked for me, but tried searching "Phonograph Monthly Review"
directly at archive.org and found it.
At the end, if you keep going into the specific links for each PMR issue,
you end at a downloading link such as this:
where instead of _1_1 you change for the volume and number you want, from
_1_1 to _1_12 and so on, up to the last one _6_6 and you arrive to the
lists of downloadable files. Best ones are the complete PDFs high quality
scans, although they're 300 Mb each.