With 30 V dc use a 30K resistor. V=IR where V=voltage I=current. To be accurate you have to consider also the resistance of the water between the electrodes which varies with the conductivity and the distance between the electrodes. May I ask why you need to be so accurate?
________________________________ From: Joe Huard <joe.hu...@primus.ca> To: Sent: Saturday, August 31, 2013 7:22 PM Subject: CS>help with diode Hi, I am lost trying to find a current limiting diode. I went to my local electronics parts store, and he never even heard of them. I found some on Mouser http://ca.mouser.com/Semiconductors/Discrete-Semiconductors/Diodes-Rectifiers/Current-Regulator-Diodes/_/N-ax1ml, but I don't get the "Maximum Limiting Voltage" part. What do I need here? I was going to use 30 V and 1 mA. Joe H. -- The Silver List is a moderated forum for discussing Colloidal Silver. Rules and Instructions: http://www.silverlist.org Unsubscribe: <mailto:silver-list-requ...@eskimo.com?subject=unsubscribe> Archives: http://www.mail-archive.com/silver-list@eskimo.com/maillist.html Off-Topic discussions: <mailto:silver-off-topic-l...@eskimo.com> List Owner: Mike Devour <mailto:mdev...@eskimo.com>
