SB220

Joseph Allis k4sh at BELLSOUTH.NET
Thu Dec 25 15:38:30 EST 2003


The diode you are looking for is a 1N2071. It crosses to an ECG116, SK3313,
or NTE116 available anywhere. If you don't have a store in your area, you
can get it from www.moyerelectronics.com .

Good Luck,
Joe K4SH


----- Original Message -----
From: "Alex Wa4Ak" <LAWALEXKAPLAN at AOL.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Thursday, December 25, 2003 2:30 PM
Subject: SB220


> I have an SB220 in near mint condition.  My problem is that when testing
> according to the manual, the high voltage readings are a bit low, perhaps
400
> volts low.  I think it may be the silicon diode stack in the high voltage
power
> supply, but the manual and schematic only refers to them as silicon diodes
with
> a Heath in-house part number of 57-27.  Does anyone know a good modern
> substitute for these and a source for them?  Any assistance would be
appreciated.
> Alex Kaplan, WA4AK
> lawalexkaplan at aol.com
>
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