Larry,
Thanks, exactly what I need or at least perfect to try and solve my problem.
If it doesn't work on the toilet it will be used on my noisy overdriven 12v fans.
Dave
KD4KTZ

(Larry W4CSC) wrote in message ...
On 5 Mar 2004 14:51:35 -0800, (David Brooks)
wrote:

My Jabsco toilet pump needs to be slowed down, what is the simplest
way to reduce speed, by voltage? It also is very noisy, hopefully
reduced speed will quiet it down too.
Dave
Silver Belle

http://www.solorb.com/elect/pwm/

http://electronickits.com/kit/complete/motor/ck1400.htm
$20 up to 100V at 5A
But, here's the SAME kit for $12
http://www.web-tronics.com/dcmotspeedco.html

http://www.aaroncake.net/circuits/motorcon.htm

http://www.qkits.com/serv/qkits/diy/pages/FK804.asp
$12 Canadian (What's that $US5?)

http://www.elecdesign.com/Files/29/5763/Figure_01.gif

And, for you meter freaks:
http://www.velmex.com/motor_speed_controls.html



Larry W4CSC
POWER is our friend!