Date: Wed, 12 Feb 1997 18:16:25 -0800
Message-Id: <v02140b00af27ba5853b9@[136.152.2.65]>
To: pinhole@exploratorium.edu
From: suzanna@seismo.berkeley.edu (suzanna loper)
Subject: Where to get crystal earphones?
Dear pinholers,
Following is a request sent to me by a colleague -- anyone have
and idea for sources of crystal earphones that would make a crystal
radio an affordable project for a large number of students?
Please forward info to tim (567587@ousd.k12.ca.us) as well as posting
it to pinhole.
Suzy Loper
>Date: Mon, 10 Feb 1997 22:22:58 -0800
>From: tim ostrom <576587@ousd.k12.ca.us>
>MIME-Version: 1.0
>To: suzanna@seismo.berkeley.edu
>Subject: Where to get crystal earphones?
>
>Hi Suzy,
>
>My name is Tim Ostrom and I was a participant at your BASTEC workshop on
>pinhole cameras. I am looking for cheap high impedence crystal
>earphones/headphones for a class project which is an AM radio which picks up
>stations without any form of electricity. It should be fun. I have tested
>it out with the only pair of headphone I own so I know it works great. I am
>working on obtaining a class set. It you know where I can get them
>inexpensively (or how to make them) I would appreciate it! Great job on the
>workshop!!! < :
>
>
> Tim Ostrom
> Bret Harte Jr. High School
>