[Boatanchors] Herathkit SB-610 Monitor Scope

Sat, 31 May 2003 20:36:28 -0500

No longer have mine, but as I recall I had to do an alignment by the book to
make mine nice and clean, and even then it was a bit "fat" for the last 1/4"
or so on each end. At any rate, if you've replaced the CRT you should get
the book out and do the full alignment.
73, Jerry W5KP

----- Original Message -----
From: "Bill Pancake" <[email protected]>
To: <[email protected]>
Sent: Saturday, May 31, 2003 8:07 PM
Subject: [Boatanchors] Herathkit SB-610 Monitor Scope

Hello All...

I could really use some suggestions for a solution to a problem I'm having
with my Heathkit SB-610 monitor scope. I have just replaced the 3" CRT with
an NOS  3RP1A as the old one died of old age.  The new CRT functions just
fine and all front panel controls function just fine.

The issue is that the CRT's horizontal trace (with no signal input) is very
sharp & crisp on the left side of the tube and gets less sharp and somewhat
thicker n' fuzzier as it approaches the right side. No adjustment of the
intensity or focus controls on the front panel will correct the "fuzzy"
right side of the line trace. When monitoring SSB voice signals the display
appears normal.

Anybody got any ideas on how to make the CRT's trace sharp and even in
thickness all the way across the display ??? Thanks & 73, Bill K0JWP
([email protected]).

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