10-04-2020, 08:25 PM
At the last Harpenden, doesn't that seem a long time ago!!, I got two long play records produced by Rank Bush Murphy in 1967.
Record #1 describes the colour principles and the shadow-mask system. Record #2 describes in detail how to adjust the many convergence controls on an early RBM 625/405 colour set.
The final section deals with how to install at colour TV in someone's home and what you should and should not say to them!
These Lectures were meant to be supported by slides and the recording tells when to change slides.. " slide thirteen" and so on.
A couple of questions;
Does anyone have the matching slides?
Are these disks rare??
Regards
Brian
Record #1 describes the colour principles and the shadow-mask system. Record #2 describes in detail how to adjust the many convergence controls on an early RBM 625/405 colour set.
The final section deals with how to install at colour TV in someone's home and what you should and should not say to them!
These Lectures were meant to be supported by slides and the recording tells when to change slides.. " slide thirteen" and so on.
A couple of questions;
Does anyone have the matching slides?
Are these disks rare??
Regards
Brian
