To: | <[email protected]> |
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Subject: | LF: "Mechanical Radio" & ID'ers |
From: | Tom Gruis, EdD, KØHTF <[email protected]> |
Date: | Thu, 26 Oct 2006 11:02:22 -0500 |
Delivered-to: | [email protected] |
Importance: | Normal |
In-reply-to: | <00e201c6f911$44b439a0$a3794c51@MLB> |
Reply-to: | [email protected] |
Sender: | [email protected] |
Hi, all. Spark generators and rotary devices, interesting! On a milder level, before solid state, didn't the olde NDBs in the U.S. use a code wheel to key the transmitter for one of the sets of towers? As I remember reading about them they had notches on the perimeter of the wheel and rolled against a micro-switch. I think I saw a list of available IDers a few weeks ago and it got away from me. If you would please, resend it. TNX ES 73 Doc. KØHTF and long wave "D" |
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