SB-610

[Stu Lyon]

Check the value of the 3.3 meg resistor (R510) from the focus pot to ground.
Also the 330k resistor (R508) between the intensity and focus pots. Bet
they're way off.

You can download a schematic from BAMA at:
ftp://bama.sbc.edu/downloads/heath/sb-610a.gif

73, Stu W6CUX
Winnetka, CA
slyon at pacificnet.net

----- Original Message -----
From: "Joe Sloss" <sloss at MINDSPRING.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Saturday, October 13, 2001 8:31 AM
Subject: IM-18 & SB-610


My SB-610 has an unfocused 3/8" diameter trace (expandable w/ Horiz. Gain).
Intensity and Focus have no effect. H & V Position works fine.  CRT voltages
check reasonable.  Swapped CRT's - same problem.  Any ideas.  Thanks, Joe

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