Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!anasaz!qip!john
From: john@qip.UUCP (John Moore)
Newsgroups: sci.electronics
Subject: Re: HP Spectrum Analyzer 8558B Part Question
Message-ID: <4615@qip.UUCP>
Date: 21 Sep 90 16:38:16 GMT
References: <4574@qip.UUCP> <7899@milton.u.washington.edu>
Reply-To: john@qip.UUCP (John Moore)
Organization: Anasazi Inc, Phoenix AZ
Lines: 15

In article <7899@milton.u.washington.edu> whit@milton.u.washington.edu (John Whitmore) writes:
]	Don't even consider germanium, by the way; the turnon
]characteristics of a diffused diode are not nearly as controllable as
]those of a Schottky barrier, so matching is far worse.  This causes
]some odd effects (like amplifying noise in the LO and shifting it
]to the IF frequency...).
Does a Schottky diode have a .34 Volt forward voltage drop (in a
diode tester)? I tested the surviving diode and that's what I found.
My Schottky diodes that I have in stock have a significantly higher
voltage drop.
-- 
John Moore HAM:NJ7E/CAP:T-Bird 381 {ames!ncar!noao!asuvax,mcdphx}!anasaz!john 
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