Inside a CAT

  • Rod Mollise
Part of the Patrick Moore's Practical Astronomy Series book series (PATRICKMOORE)

Tom Johnson was a man with a mission, but that mission had nothing to do with telescopes, at least not at first. Johnson had formed a small company in the early 1960s in southern California, Valor Electronics, to produce power supplies and other items for the burgeoning hi-tech industries of the area, and he was focused on making his firm a success. There things would have stayed if he had not bought a small Newtonian reflector for himself and his children. That was the spark. Johnson became one of those rare people who discover their true calling, and he was soon a full-fledged amateur telescope maker. By 1963, he had finished building an innovative 18.75-inch Cassegrain telescope, a huge amateur instrument for the time, and was showing it off at area clubs and star parties. Tom Johnson and his absurdly big, portable, and advanced telescope were featured in a Sky & Telescope magazine cover story that year.

Johnson soon set his sights higher than just occasionally contributing to...


Spur Gear Drive Gear Primary Mirror Secondary Mirror Hand Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Rod Mollise
    • 1
  1. 1. AL

Personalised recommendations