Journals Radioamator 2010 Service manuals, schematics, documentation, programs, datasheets, electronics

Yet more LED applications, a power sequencer, and an old Design Idea returns
Just when I think that I’ve seen all possible permutations of multiple-LED driver and controller circuits, readers of Design Ideas devise yet another clever method of lighting ‘em up. Based on Atmel’s ATTiny13 single-chip microcontr … Details... more »

 

Power apps, Prony rides, and the usual batch of good links
This batch of Design Ideas deals mostly with power. A friend related an incident at a design review, in which the lead engineer informed a corporate exec that the project was only 3 dB over its budget. The exec went away happy (for the moment), and t … Details... more »

 

Six more, and an announcement
What’s your least favorite electronic component? If it’s resistors, you’re in luck. Author Martian Stofka follows up his earlier contribution, Gain-of-three amplifier requires no external resistors, with a variant-- this Gain-of-two … Details... more »