View Single Post
  #10  
Old 08-07-2015, 12:43 PM
jr_tech's Avatar
jr_tech jr_tech is offline
VideoKarma Member
 
Join Date: Sep 2009
Posts: 4,510
Quote:
Originally Posted by Arcanine View Post
If you do I may be interested. I think the KV5000 was one of the last Sony sets where when plugged in and powered off, voltage is always applied to the tube.
I don't think that is so... try an experiment... measure warm-up time under two conditions:

1. TV set unplugged, power switch on... plug in and measure warm-up time.
2. TV plugged in power switch off... turn on and measure warm-up time.

In BOTH conditions, my 5000 takes about 5-6 seconds to produce a visible raster and hits near full brightness in about 10-12 seconds.

I understand that Sony used a *Directly Heated* low power (180 mw?) cathode in these CRTs to achieve the rapid warm up.

jr
Reply With Quote
Audiokarma