Crystal Radios

From: Lawrence LeMay <lemay_at_cs.umn.edu>
Date: Wed Mar 28 14:51:37 2001

Since we're mentioning unusual crystal radios such as the Foxhole radios,
I'll just mention that there is one other type that always interested me,
though I never actually built one. These crystal radios include a
transistor amplification section, which gets the power to drive the
transistor from the signal strength of other local AM stations.

-Lawrence LeMay
Received on Wed Mar 28 2001 - 14:51:37 BST