moody07747
Member
I'm making a mini guitar amp, (AKA the Ruby amp) and want to put a small fan in the case to add a little style.
http://www.runoffgroove.com/ruby.html
Anyways I'm running the circuit at 9VDC and the small 25mm fan I have runs at just 5VDC
Now I know I have to use the ohms law calculation and I'm great at it......When the number of amps is at or over 1...
So I'm just wondering what rating resistor I should use to get this fan running at the correct voltage
Also, would it be safe running it at 9VDC?
The most this amp would be running at one time is around 1 1/2 hours.
Power supply:
9VDC, 800mA
Fan:
5VDC 0.3W
Fan link:
http://www.allelectronics.com/cgi-bin/item/CF-248/search/25MM_5VDC_COOLING_FAN_.html
http://www.runoffgroove.com/ruby.html
Anyways I'm running the circuit at 9VDC and the small 25mm fan I have runs at just 5VDC
Now I know I have to use the ohms law calculation and I'm great at it......When the number of amps is at or over 1...
So I'm just wondering what rating resistor I should use to get this fan running at the correct voltage
Also, would it be safe running it at 9VDC?
The most this amp would be running at one time is around 1 1/2 hours.
Power supply:
9VDC, 800mA
Fan:
5VDC 0.3W
Fan link:
http://www.allelectronics.com/cgi-bin/item/CF-248/search/25MM_5VDC_COOLING_FAN_.html