The Mudcat Café TM
Thread #97214 Message #1911294
Posted By: Stilly River Sage
16-Dec-06 - 05:15 PM
Thread Name: Tech: I want to build an AM tube radio
Subject: RE: Tech: I want to build an AM tube radio
There are devices used for blocking phones, but they're not legal here. I've heard about South American cities where they are popular, such as in movie theaters.
SRS