Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Laser Pointer Store

Rkcstr driver help

HIMNL9

New member
Joined
May 26, 2009
Messages
5,416
Likes
193
Points
0

Joined
Apr 26, 2010
Messages
173
Likes
4
Points
0
i cant even afford the postage, dont be mean im 14 and dont have acces to the paypal. :( do i have to use a 1 ohm at 1 ohm it wouldnt really matter would it.? i have 10 ohm pls tell me.
cheers
 
Joined
Apr 26, 2010
Messages
173
Likes
4
Points
0
ok guys i just tried my trst load with the 10 ohmer. i tested the output under the 200m setting first of all again is this right. it read 55. then i tested it with the 10 ohm resistor and the dummy load, it read 30.
your thoughts??
cheers
 

HIMNL9

New member
Joined
May 26, 2009
Messages
5,416
Likes
193
Points
0
with a 10 ohm resistor, your DMM reads 10 times the current value (10mV for each mA), but at the same time the resistor dissipates 10 times more power in heat ..... not the better solution .....

Can't you find an 1 ohm resistor in some old PCB or broken power supplies or similars ? ..... maybe your local PC store can give you some of them for free, for harvest (also a pair of 2,2 ohm in parallel is good enough, for a test, and almost half of these PSU uses this value resistors)
 
Joined
Apr 26, 2010
Messages
173
Likes
4
Points
0
is a dvd player an ir laser or red laser?? i know a dvd burner is a red but not sure about a dvd player
 

Pontiacg5

New member
Joined
Dec 23, 2007
Messages
2,524
Likes
166
Points
0
I think they are usually <5mW. Also, I don't think they are usually the TO-18 (5.6mm) case that we like. For the most part they are useless but if you're going to throw it away you might as well try.
 
Joined
Apr 26, 2010
Messages
173
Likes
4
Points
0
ok. my dmm wont read the out put anymore? but my analoge multimeter wil?? and my ddl driver is putting out 55ma but on the second i dont think the pot is working because i cant controll the output.
p.s my dmm will read battery voltage.
cheers
 




Top