1. #1
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    Default minitor amp charger

    Hello,
    I am in the market for a minitor II or III amp charger with the relay output on the back. Please let me know if you have one for sale. I am also willing to trade my minitor II amp charger without the relay + cash for one with the relay.

    Thank You,

    Ben

  2. #2
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    Default DIY

    Go to an electrical supply store and buy a solid state relay that will work on about 3vdc. Solder it to the alert light led. Find one of those plugs with a with a switch on it, hack off the switch and connect it to the relay.

    If you donít have the skills, just ask around your station. Iím sure there is someone who does.

  3. #3
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    Im slightly confused. I have a few more questions.

    1. Where do I solder? both legs? (see attached image)

    [IMG][/IMG]

    2. After I solder the relay to the alert LED, what do I attach the relay to?

    3. What type of switch are you reffering to?

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    Default

    The ones modified with the relay show up on eBay every so often (the unmodified ones are available almost constantly).

    There's good technical data on the wiring and pin-outs for the Minitor IIs and IIIs at

    Batwing Laboratories
    Chris Gaylord
    Emergency Planner / Fire Captain, UC Santa Cruz FD

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    Default Let's see if this helps

    I bought my relay at RadioHack a few years back. However, they no longer carry ANY solid state relay.
    Attached Images Attached Images  

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    Default

    I'm an idiot, what's the purpose of the relay?

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    to switch a large electrical load(the lights) with a small electrical signal(the led light). Its an electriclly activated switch.

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    Originally posted by HondaTypeSE
    to switch a large electrical load(the lights) with a small electrical signal(the led light). Its an electriclly activated switch.
    Ok, remember I'm a self-proclaimed idiot. What benefit would this create?

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    Default

    Originally posted by asnyder


    Ok, remember I'm a self-proclaimed idiot. What benefit would this create?
    One use would be to turn-on a bedside lamp when the pager goes off. Some volunteer firefighters do this at home, and I've heard of some departments using these as cheap station alerting systems (most of the stations around here are set-up to have the lights come on and even the bay door open when a call comes in).

    We also used to have a similar system set-up for use at our Christmas dance for the on-duty personnel. Because of the noise with the band, pagers were hard to hear, so a Plectron was set up connected to a rotator light. When a call came in, the light would activate, serving as a visual alert.
    Chris Gaylord
    Emergency Planner / Fire Captain, UC Santa Cruz FD

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    Thanks for the info Chris. I could see the benefit with the light on the nightstand. I can't tell you how many stubbed toes I've had trying to navigate the dresser, bed, and the dog.

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    I just had a quick question for anyone who can answer. Is this relay connection as described above for the amps that don't already have the relay on the back of it?

  12. #12
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    Default

    i have been wondering the same thing, but have one of the charger/amps that does have the relay output on the back so how would i go about connecting that to a lamp?
    NJ FFII/EMT-B

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