getting 12v from a 24v system?

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4187

Member - Posts: 5

Joined: March 08, 2006

Location: United States

Posted: March 08, 2006 at 11:53 AM / IP Logged

I have customer with a 1986 military issued humvee with the 24v system. Does anybody have any ideas on how to get a 12v switched ignition out of this?

mad550

Copper - Posts: 201

Joined: February 23, 2006

Location: Australia

Posted: March 08, 2006 at 2:23 PM / IP Logged

A reducer and 24v relays don,t go from one battery as when charging you'll spike the alarm with 18-19v

WOW Sight and Sound

Maroochydore

Nothing is impossible!

Do it right the first time or don't do it at all.

xscash

Copper - Posts: 317

Joined: March 05, 2006

Location: United States

Posted: March 08, 2006 at 10:42 PM / IP Logged

not only that....when drawing from 1 batt. the vehicle will not see the draw from that batt and increase the charging on the system....this will result in a dead batt situation. i found this to be in every case a radio was mis wire in any costuction equipment.

4187

Member - Posts: 5

Joined: March 08, 2006

Location: United States

Posted: March 09, 2006 at 10:43 AM / IP Logged

where can I pick up a 24v relay?

KPierson

Platinum - Posts: 3,527

This member consistently provides reliable information

Joined: April 14, 2005

Location: Ohio, United States

Posted: March 09, 2006 at 12:02 PM / IP Logged

You can pick up a 7812 from Radio shack if your output needed is less then 1A.

Kevin Pierson

xscash

Copper - Posts: 317

Joined: March 05, 2006

Location: United States

Posted: March 09, 2006 at 6:42 PM / IP Logged

look in jc whittney...they always have some retarded part that everyone will need some day....24vdc-12vdc converter

datspeed77

Member - Posts: 35

Joined: September 14, 2004

Location: United States

Posted: March 29, 2006 at 2:25 PM / IP Logged

KPierson wrote:

You can pick up a 7812 from Radio shack if your output needed is less then 1A.

Or you pick up a 7812 to run the trigger for a 30amp relay! Haven't worked on any 24V systems yet. Looks like it'll be fun.

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getting 12v from a 24v system?

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