› Forums › BAA Events and News › John Wall (1932-2018) › John Wall
12 February 2018 at 11:09 am
#579109
![](https://britastro.org/wp-content/uploads/2016/08/picture-220-1470731429-80x80.jpg)
Participant
Just found some fascinating stuff that John sent me many years ago. If time allows I’ll try and dig out some more. This was John’s unique solution to making a Newtonian tube rotate, his sketch and the reflector he built. The mirror end rests on a ball and socket which takes the load when the tube clamp is slackened off……
Martin