They have these on Amazon and several other sites for sale. Perhaps it's time to replace your old dingy hat with a new one or perhaps you can find specs for the fan motor if you troll the internets. http://www.amazon.com/Sun-Mate-692-Solar-Safari-Cool/dp/B0002SNPDO/ref=sr_1_1?s=automotive&ie=UTF8&qid=1277910517&sr=1-1 On Wed, Jun 30, 2010 at 6:42 AM, Eric Kalgren <[log in to unmask]> wrote: > Once upon a time, in the early 90's, I bought a pith helmet with a solar > powered fan attached to the front of it. It was hands-down the coolest > hat on the block. > > The small solar panel that powered the thing broke and I want to replace > it, but I don't know how much solar panel I need to run the motor. I > know it's 3 VDC because it uses 2 X AA batteries as a back up supply, > but I don't know how much current I need to run the motor. > > The old panel sat in a 2" X 2 1/2" pocket on top of the hat. I've > Googled it and checked out a few options but nothing listed has the same > footprint. And so I am punting to the TechNet to see if anyone might > have an idea of how to guesstimate the current draw of a small DC fan > without having an O-Scope handy. > > I'll send a picture to Steve as well, just for kicks. > > Thanks! > > Eric Kalgren > Electrical Engineer > > The Ferrite Co. Inc. > 165 Ledge Street > Nashua, NH 03060 > Phone 603-881-5234 X 153 > Fax 603-881-5406 > PRIVILEGED AND CONFIDENTIAL COMMUNICATION > This E-mail is covered by the Electronic Communications Privacy Act, 18 > U. S. C." 2510-2521 and is legally privileged. The information > contained herein is confidential and is intended only for the use of the > individual or entity named above. If the reader of this message is not > the intended recipient, you are hereby notified that any dissemination, > distribution or copying of this communication is strictly prohibited. > If you have received this transmission in error, please immediately > notify the sender by telephone or via e-mail and delete the original > transmission including any attachments without reading or saving in any > manner > > > > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 15.0 > To unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF Technet > To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) > To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest > Search the archives of previous posts at: http://listserv.ipc.org/archives > Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 > ----------------------------------------------------- > -- Brian Stumm ETS Energy Technology Systems, Inc. http://EnergyTechnologySystems.com [log in to unmask] 509-276-2015 (PH) 509-276-2016 (FX) ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------