Re: TI-H: Demolition Calc


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Re: TI-H: Demolition Calc




AM is better for his proj.  If doing FM, then just thow in a 555 timmer .
Don't mess with all the microphone stuff.


>a simple fm transmitter would be in hte range of <$5.00 for this purpose,
>but you could buy one you talk into at radio shack for $10 and then change
>input to be neg calc link outputs.  (it would be cheaper and easier just to
>put a button in place of the microphone than rig it to the calc)  For the
>reciever on the bomb, im not eaclty sure about price, put a simple fm
>tuning circuit set to the same one as the transmitter that drives a simple
>transistor amplifier for the ignition power supply can't possibly be over
>$5.00 either.
>
>
>At 09:53 PM 12/16/98 -0500, Jon Mullen wrote:
>>
>>Let's say I've got an operating budget of $20, to make the receiver and two
>>bombs.  Would it be possible to make a transmitter for the calc, which sends
>>out a signal, which is received by the bomb, which sends electricity to the
>>fuse, which ignites?  Batteries are expendable...
>>
>>Kaus wrote:
>>
>>> you could do it by having a simple shortrange radio connection that simply
>>> waited for the right pulse on the link that caused the bomb to detonate
>>> using perhaps a simple ignition like for the little rocket things physics
>>> classes around the world make.  but, you would have to have a power suply
>>> capable of igniting the thing on board the bomb, so the explosion could do
>>> damage to the circuitry/batteries.  If this is not a problem, then....
>>>
>>> At 09:35 PM 12/16/98 -0500, you wrote:
>>> >
>>> >Is the anyway to make a remote controlled bomb (cherry or smoke bomb)
>>> >that is controlled by a device attached to the calc?  Can it be made for
>>> >relatively cheap?
>>> >
>>> >
>>
>>


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