Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (June 2005, week 1)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Tue, 7 Jun 2005 12:55:39 -0700
Reply-To:     Vanagon <vanagon@ASTOUND.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Vanagon <vanagon@ASTOUND.NET>
Subject:      Fridge light home made indicator
Content-Type: text/plain; charset="iso-8859-1"


Well I am giving up on the LED console from the 85 for the fridge light. I dont use the water tank level and already have a digital volt meter for the battery. 


So I am trying to build a volt meter or rather convert a small analog 12vt meter over to be able to read the very small current the thermocouple produces.


The standard volt meter that is 1-15 volts radio shack sells uses a coil on the needle and a resistor. 


Anybody know what resistor a standard analog meter would use to measure the very small 12 millivolts that the thermocouple produces. or a range for measuring it. 


My multimeter will measure it but I cant seem to determine which exact resistor its using. It may be 156K if that sounds close.  


Any help will be appreciated. I am just trying to get an indicator of the fridge being lit. 


Thanks


Doug in Calif
Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!

Return to the archives @ gerry.vanagon.com

The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.