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From: "Phil Allison"
References: <email@example.com> <8npR9.16063$jM5.firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com>
Subject: Re: Low leakage parts
X-Newsreader: Microsoft Outlook Express 5.50.4522.1200
Date: Wed, 8 Jan 2003 08:14:01 +1100
NNTP-Posting-Date: Wed, 08 Jan 2003 08:03:51 EST
Organization: Telstra BigPond Internet Services (http://www.bigpond.com)
"Tom Bruhns" wrote in message
> I have a small catalog around here somewhere that lists high-value SMT
> resistors; it was from at least 10 years ago (may have tossed it by
> now!) Anyway, http://www.irctt.com/pdf_files/HR.pdf shows values in
> 0805 size up to 50 gigohms.
** Gohm resistors are easy to get now - just not in 1978 when I had to
bug to make mic pre-amps. BTW I have a couple of old 1 G ohm resistors
fitted inside sealed glass tubes - seems the way to go to me.
Commercial fet pre-amps for condenser mics all seem to use tiny
carbon comp 1 G ohm resistors and the PCBs are normally coated in the
sensitive area to keep out moisture - essential for a hand held mic.
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