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From: GOT@PSUVM.BITNET
Newsgroups: net.audio
Subject: NEED HELP FINDING "DNR" CHIP!
Message-ID: <1606GOT@PSUVM>
Date: Fri, 22-Feb-85 12:47:26 EST
Article-I.D.: PSUVM.1606GOT
Posted: Fri Feb 22 12:47:26 1985
Date-Received: Tue, 26-Feb-85 08:02:25 EST
Lines: 22


   Hi,  maybe someone out there can help me out.  I'm looking for a chip that N
ational Semiconductor produces.  What i'm trying to make is the Dynamic Noise R
eduction circuit presented in this months issue of Audio magazine.  I have all
of the parts except the DNR chip.  The number of the chip is:

      LM1894N DNR.


   I really don't feel like spending $35.95 for all the Semiconductors in the c
ircuit (an offer they make in the article), when all i need is one!

   Also i'll need an adjustable coil.  Its number is:

            4.7mH adjustable inductor, Q=35 at 19kHz (Toko cln20-740HM)

   If anyone can help me to locate a distributor, or if anyone knows where i ca
n find these i'd appreciate if you left a note in my reader at GOT AT PSUVM.  I
've looked all around this area, and no one knows where to find the chip or th
e inductor.

thanks  .....               Sunil Gupta (GOT AT PSUVM)