Message-Id: <3301187A.14A0@ousd.k12.ca.us>
Date: Tue, 11 Feb 1997 17:10:18 -0800
From: tim ostrom <576587@ousd.k12.ca.us>
To: pinhole@exploratorium.edu
Subject: info
> I am looking for a class set of inexpensive high impedence crystal
> earpieces/headphones to be used for crystal radio sets assembled by my 7th
> grade students. If you could send me a list of some sellers I would
> appreciate it. If there is something else which could be used in place of
> these earpieces or if they can be homemade that world be great.
>
> Thank you
>
> Tim Ostrom
> Bret Harte Jr. High
> Oakland Unified
>