Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: Notesfiles $Revision: 1.6.2.17 $; site trsvax.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!houxm!ihnp4!inuxc!pur-ee!uiucdcs!trsvax!mikey
From: mikey@trsvax.UUCP
Newsgroups: net.audio
Subject: Re: Homebrew speakers - followup
Message-ID: <55100059@trsvax.UUCP>
Date: Wed, 31-Oct-84 09:37:00 EST
Article-I.D.: trsvax.55100059
Posted: Wed Oct 31 09:37:00 1984
Date-Received: Sat, 3-Nov-84 03:24:52 EST
References: <557@asgb.UUCP>
Lines: 29
Nf-ID: #R:asgb:-55700:trsvax:55100059:000:1405
Nf-From: trsvax!mikey    Oct 31 08:37:00 1984



All the books I ever read advised against plywood and recommended particle
board.  There is nothing wrong with plywood as such, but with age it
can internally delaminate and cause buzzes and rattles.  Particle
board may be harder to work with, but it will stay dead.

Also, Altec Lansing used to sell a speaker design manual that was
excellent.  It told how to check resonance, how to match the impedance
humps in tuned-port systems, and how to design crossovers with steps and
various slopes.  I THINK it was about $15.00 and I got mine around
1971.  I lent it to a friend and that's the last I saw it.  It WAS
excellent.

You might want to look into Norelco components.  B&O, as well as a lot of 
other manufacturers use the Phillips/Norelco line parts under their own 
name.  They used to be available from McGee Radio in Kansas City, MO.
They don't carry as much Norelco as they used to, but they carry enough.
I bought some Norelco ad10010/w8 drivers from them a few years ago for
about $30.00 apiece, when other sources were selling them for close to $60.00
and as far as I could tell, they were the same woofers in the B&O M70s.

The McGee catalog is fairly thick, free, and very interesting.  Their
prices on complete equipment is above the discounters average, but their
prices on raw components is very low.  They also carry Oaktron, CTS, and
Altec, as well as other brands.

mikey at trsvax