Quote:
Originally Posted by Kevin Kuehn
My Kiver is copyright 1953. Here's an alternate circuit they show on the next page. But I'm pretty sure the first one is correct for the 30A1 Admiral.
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Hmm... There are general similarities, but there's a lot of extra stuff around the Vert. oscillator:
Also, the grid
and the plate in the CRT are connected to the brightness control.. (the video goes to pin #2) So, how would the blanking circuit be connected here?
In other news, I tried changing the tap on the damping resistor to see if it improved the linearity at all. I didn't see any change, so I went to reconnect it to the middle tap. Before I did, while the wire was disconnected I took a resistance measurement. My meter indicated that the resistor was open! WTF? I checked between the upper taps and got the specified 500 ohms each, or 1K together. However, when I tried to measure across the main windings (5.3K), nothing. When I really wiggled the connection around I could get a reading, but it was extremely high (like over 2 meg!)- very wierd. The schematic showing the resistor is here:
I'm wondering if this may have something to do with my width and linearity problems...
