04-28-2003, 11:02 PM
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That's all folks
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Join Date: Nov 2002
Location: Washington (in a van down by the river)
Posts: 419
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Micro low voltage relays.
Found these micro relays at Newark Electronics. Contacts are rated for 1 amp. Coil voltage is 3 volts, spec sheet says they will make at 75% (2.25 volts). Should work for a dual cell. Max coil voltage is 150% (4.5 volt). This should work for three cells. They are also available with 4.5 and 5 volt coils, for more cells. Newark part number is 29c7707 for the 3 volt model. Newark also has the mosfets for the mosfet mod. I got some but I don't know if I have a steady enough hand to try to solder those little buggers. The relay should be a great drag racer mod, dump the juice from the battery straight to the motor. Results to follow, I have a Zip sized (Zip body fits it) custom four wheel drive with kit racer gears to see just how fast these little cars will go before they get airborne.
Here is a pic of the relay:
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04-28-2003, 11:08 PM
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That's all folks
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Join Date: Nov 2002
Location: Washington (in a van down by the river)
Posts: 419
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Here is a pic of the relay sitting on a bit PCB, fits nice in the little blank spot on the top of the board. A dab of glue, and solder a few wires, then I will be ready to crack my 11.6 mph speed record!
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04-29-2003, 12:37 AM
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0reZepyT
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Join Date: Feb 2003
Location: Boston, MA
Posts: 804
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what's newark's website? google gave me dumb links to universities. does it say how much voltage is needed to trip the relay? how much were they?
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04-29-2003, 08:27 PM
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Join Date: Nov 2002
Location: Washington (in a van down by the river)
Posts: 419
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http://www.newark.com
The spec says they will trip at 75% of rated voltage. They are rated for 3 volts so that would be 2.25 volts. They were $3.68 each, a little spendy, but I wanted to get the mosfets too.
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Last edited by bdebde; 04-29-2003 at 08:31 PM.
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04-29-2003, 09:14 PM
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0reZepyT
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Join Date: Feb 2003
Location: Boston, MA
Posts: 804
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i can see it now, dual button cells to power the pcb and like 6 regular cells to power the motor all in a really stretched chassis  i'd make one if i had the time
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Friends (Joey's Bag)
Rachel: Exactly! Unisex!
Joey: Maybe you need sex. I had sex a couple days ago.
Rachel: No! No Joey! U-N-I-sex.
Joey: Well, I ain't gonna say no to that.
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04-30-2003, 12:00 AM
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That's all folks
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Join Date: Nov 2002
Location: Washington (in a van down by the river)
Posts: 419
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Hey, now you're talkin!
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