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The Econoquick is a "half-way" instant on. It keeps a couple volts on the filaments, but not full blast like Zenith did on the 25DC56/EC58, and Hitachi did also on some early 70s sets. So it's normal for a couple seconds of warmup even with Econoquick. There wasn't a switch for Econoquick, however the remote sets had a "vacation" main switch on some models which killed the whole AC line to the set. I know the early big screens of the early 70s such as the KP-4000 and its ilk had them, and I think the KV-xx30, KV-xx41 sets did too.
I like Econoquick because it seems to make the CRT last longer (debated in another thread a few months ago). My experience is that on those Sonys, the tube can be in great shape, then if you unplug the set for 6 months, the CRT looks terrible. To racap that other thread, my theory is that the slight heat in the tube will keep the gasses at bay, and no allow the cathode coating to get corroded as easily.
To disable it, I would think the easiest would be to add a relay to the filament circuit which would open with no B+ applied. I got rid of all my Sony books, or I'd be able to give a better answer. I do recall that there are 4 wires on the ON-OFF switch, which probably has something to do with the Econoquick.
Charles
Last edited by Kaye-Halbert TV; 05-16-2006 at 12:09 PM.
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