hello so i just found the best website www.allelectronics.com
and i got a bunch of new ICs the only one that i am having trouble with is the bar graph display driver. i cant find a good schematic for it and if i do it have something called a signal source i dont know what that is. do you guys have a schematic that i could use. or some help.
You hardly give us sufficient information to work with?
A signal source is just what it is: A 'circuit' generating an electrical signal. It could be your power line generating 50/60HZ, it could also be a free running 555...
yes i will print it out and do it (the schematic) tonight
just a quick question what website do you guys get stuff like electronic parts it is hard because i am only like 12 so i dont have a credit card or anything and radio shack does not have that much i have been using www.allelectronics.com
what do you use.
yes i will print it out and do it (the schematic) tonight
just a quick question what website do you guys get stuff like electronic parts it is hard because i am only like 12 so i dont have a credit card or anything and radio shack does not have that much i have been using www.allelectronics.com
what do you use.
I am only like 50 years older than you, little kid.
Ask your mommy or daddy to buy parts online for you from Digikey or Newark. If you order before 8:00PM then it is delivered the next morning unless you live on Mars.
A variable resistor [potentiometer] has 3 connections.
For your project the two outer connections are connected as follows.
One to the +5V line and the other to the 0V line, the centre connection [the wiper or slider] goes to the LM3914 Vsource input.
So as you turn the pot the voltage on the wiper will vary.
hey cmon dont bring my mom and dad into this i feel like i am doing good now i install linux on computers for friends i work at a computer store making 8.95 a hour. i have made a 275mw red laser with a regulated power supply (LM317) and a 50mw blu laser also with the LM 317. i have built a quad core computer.
hey cmon dont bring my mom and dad into this i feel like i am doing good now i install linux on computers for friends i work at a computer store making 8.95 a hour. i have made a 275mw red laser with a regulated power supply (LM317) and a 50mw blu laser also with the LM 317. i have built a quad core computer.
I use Digikey and Mouser, but they all need credit cards. It sucks to not have a credit card (even if you do have a job!). Before 18, I had a job and all the money in the world and nothing to spend it on because I couldn't order anything online without a credit card (until I turned 18).