John Ruiz was one of the
first amateur astronomers to mix photo-electric cells, vacuum tubes, and
telescopes electronically. In the December, 1951, Issue of Sky &
Telescope, he reported on his observations
of variable stars with his 8-inch reflecting telescope and a photoelectric
photometer which he had built himself. John was not only an assiduous observer,
but he was also an excellent craftsman with a remarkable ability to thread his
way through the complexities of electronic design. In addition, he had the
capability of inspring new comers to astronomy to "go out and do
likewise."