11 Jun
2001
11 Jun
'01
10:43 a.m.
From: ard(a)p850ug1.demon.co.uk (Tony Duell)
Subject: Re: sync on green to horizontal and vertical wiring seperator.
To: classiccmp(a)classiccmp.org
Date: Tue, 12 Jun 2001 00:50:03 +0100 (BST)
Reply-to: classiccmp(a)classiccmp.org
If it comes from the flyback anyway. try winding a couple more turns
round the flyback core and putting them in series with the existing
heater supply winding. One way will reduce the heater voltage (and may
even cause the screen to go blank), the other way will boost it.
Tony,
Got right direction of turns first try, Just two turns too much!
Got nice bright orange glow like electric stove coil on full without
pot sitting on it and bright raster lines! Whoa.
Will try one turn even just a pass through.
Normally about 6.3V at 1A for a colour CRT IIRC.
1 amp!? No wonder I see dust beard tracing out that heater traces.
Cheers,
Wizard