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Johst Chora
09-03-2009, 12:50 PM
My first question is I ordered the UltraSound 2.5 board and MHS speaker and battery holder and I was just wondering what kind of resistor I would need or if any? My second question is would this switch work with the UltraSound 2.5 Nickel Plated Momentary Switch? Thank you this would really help.

Kal El Rah
09-03-2009, 12:53 PM
Which LUX led? and yes the switch will work. No resistor is necessary for the led but maybe for the switch led.

Johst Chora
09-03-2009, 01:05 PM
It's a LUX3 green led and the switch dose not have a led in it.

Kal El Rah
09-03-2009, 01:49 PM
Ok great, you want a batt. setup of 4.8 v and just use the standard lux 3 setup on the us2.5 board and you should be golden. :grin::cool::p

astromech_kuhns
09-03-2009, 07:29 PM
you need to find out how much the board can take and the how much your voltage is. if its to much you need a resister placed between it and the battery. do you know ohms law?

Lord Dottore Matto
09-03-2009, 08:58 PM
The board will take care of everything for you. NO resistor needed.

Johst Chora
09-03-2009, 10:53 PM
thanks guys