J
Jennie
- Jan 1, 1970
- 0
Where is the cheapest and decent quality place to get a DC Power Supply?
Jennie said:Where is the cheapest and decent quality place to get a DC Power Supply?
Since you have not specified a particular voltage or current I will assume youJennie said:Where is the cheapest and decent quality place to get a DC Power Supply?
Where is the cheapest and decent quality place to get a DC Power Supply?
Jennie said:Where is the cheapest and decent quality place to get a DC Power Supply?
Jennie said:Just a single variable dc source up to 13 to 14 volts. Under 50..
Jennie said:Thanks....
Just curious, if I hook up a led with 20mA to 3 AA battery how long will the
light stay lit?
Thanks
Jennie said:Thanks....
Just curious, if I hook up a led with 20mA to 3 AA battery how long will the
light stay lit?
Thanks
Correction
Depends on the battery, and the LED.
for ACCUPOWER "1000mAh" AAA Nimh cells it would be
1.000 / .02 = 50 hours. However that does not allow for the voltage.
For a single led with a series resistor from .12 * 3 = 3.6 volts down to 2.7
volts.
Jennie said:What book have all this good info in it?
Jennie said:Where is the cheapest and decent quality place to get a DC Power Supply?
Robert Baer said:You Have to say what you need.
What voltage, adjustable or fixed, what current capability, current
limiting?, adjustable current limiting? meters?
Be explicit!