[Heathkit] SB-610 display

[Paul Kraemer]

Steve
Any time a scope trace suffers from anomolies over it's width it is a pretty 
good indication that there is a problem with the sweep run up cicuit. That 
is the circuit that generates a ramp signal to deflect the beam left to 
right in this case.
The output from that circuit should be a straight sloped line. If the line 
is bent or bowed the trace will be compressed or expanded across the screen. 
The scene you are discribing could be oscillations on the sweep run up.
You need a service scope to service the scope properly.
Paul K0UYA

----- Original Message ----- 
From: "Steve" <steve65 at suddenlink.net>
To: <heathkit at mailman.qth.net>
Sent: Saturday, December 08, 2012 8:27 PM
Subject: [Heathkit] SB-610 display


> Hi all,
>
> I posted this a few weeks ago on another reflector, got no response. 
> Thought I'd try it here.
>
> I need some advice regarding the display on my SB-610 monitor scope.
>
> The left side of the displayed trace looks to be "normal." But, beginning 
> about the center of the screen and onward to the right, the trace is 
> segmented into distinct, closely spaced vertical lines. I have just 
> recently noticed the vertical lines, not sure how long they've been there.
>
> Any ideas as to why the right side of the display is composed of vertical 
> lines while the left side is not? Is it normal?
>
> Thanks.
>
> Steve K8JQ
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