It seems we need to find a set of colored LED's that give similar output as the reds.... With the research done so far, doesn't look at that likely. I wonder if there are other resources. I wonder if a resistor pack of a slightly higher value than 470 might be a better compromise and change the value of the SWR reds so they won't draw more than the others. This would help reduce power draw.
73, Bill K9YEQ K2 #35; KX1 #35; K3 #1744; mini mods -----Original Message----- From: Doug Joyce [mailto:[email protected]] Sent: Friday, February 20, 2009 9:40 PM To: Bill Johnson; 'Dave Van Wallaghen'; 'Jack Smith' Cc: [email protected]; 'Ken Kopp' Subject: Re: [Elecraft] Leds for W1 Bill: I've done some further testing and believe it's going to take increasing the current to approx 6 to 7 ma to get the new coloured LEDs to be bright enough. That would involve reducing the 2.2 Ks to approx 470 ohms and finding a source for a suitable resistor pack. At this higher current the red LEDs are still brighter than the other colours and there is no easy way to separately control the current to individual colours. There are also a number of other things to check such as the ability of the U3 regulator to handle the increased current. Battery life will also be reduced and perhaps this "coloured version" needs to be run from a wall wart. 73 Doug, VE3MV ----- Original Message ----- The Professional version does not have this message ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
