> > From: Mark Sims: > A much simpler solution is to dedicate a $20 "obsolete" laptop to the > Tbolt. I use a 200 MHz Compaq Armada with 1024x768 screen. I have also run > Heather on a 90 MHz Fujitsu Milan with a 640x480 passive matrix screen. > For bonus points, tap off the internal laptop CDROM power connections (and > possibly an internal -12V line) and power the Tbolt from that (you may want > to filter the wazoo out of it). Voila, battery backed up Tbolt. I know of > one person who has an ancient, steam powered laptop that had enough room > inside it to mount the Tbolt circuit board totally inside the machine. >
To me there are several reasons to not use an obsolete laptop... among them: 1) it requires enough space to be considered "annoying" 2) I have already too much cables around 3) It draws at least 20-30 times more energy than the 1 W required by my circuit: maybe I'm too environmental conscious, but I do not like to waste energy 24/7/365. Even because here in Italy the price of electrical energy is the highest in Europe <http://www.energy.eu/>! 4) I need to keep the EMI reduced to a minimum: all of the electronics in the laptop and its SMPS will generate lots of noise (especially if it is an obsolete one: I have already tried this path!). My receivers prefer other type of "noise" :-) 5) Most important one: I like to build things! _ Elio. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
