Thursday, October 18, 2012

Smoke and flames from my IFR-1000S...

›
I'd not really intended to have two posts in a row about repairing service monitors, but fate/opportunity intervened... Figure 1: ...
13 comments:
Friday, October 5, 2012

Resurrecting a CE-50A service monitor

›
Several weeks ago a friend of mine gave me his old Cushman CE-50A service monitor - a "Swiss army knife" piece of test equipment u...
10 comments:
Tuesday, September 18, 2012

Throwing one's voice 95 miles on a lightbeam

›
For more information about long-distance optical communications, go to the modulatedlight.org web page   (link) This past weekend (Sept...
2 comments:
Thursday, September 13, 2012

Two repeaters, One frequency (Part 3)

›
For a follow-on article in this series, see Part Four (link)   for a discussion of how the voting receiver system works. In parts One an...
Wednesday, September 5, 2012

Voice on a laser beam...

›
Sending voice over light is nothing new.  The first wireless voice communications system - using light - was the PhotoPhone , demonstrated...
2 comments:
Friday, August 31, 2012

Problems with Lithium Iron Phosphate (LiFePO4) Batteries

›
Update: For an update about what turned out to be happening with these batteries - and one possible solution - see the May 18, 2013 post, ...
16 comments:
Tuesday, August 14, 2012

A more practical capacitor-Powered Flashlight

›
In an earlier post, " A mechanically-powered capacitor flashlight " I wrote about those cheap LED-based "shake-powered" ...
6 comments: