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RE: [TCML] Tesla Coil remote



On a solid state coil the receiver is actually part of the coil and runs
either off the AC mains or aux power and is controlled by a fiber link. I
have not seen this arrangement to cause any particular issues. Some people
like batteries, I don't. They wear out then you have to buy new ones.

 

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Dave Leddon
Sent: Sunday, March 10, 2013 1:10 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Tesla Coil remote

I would connect the receiver to the coil using fiber optic cable and then
place that receiver some distance from the coil.  I would also run the
receiver from batteries to provide further isolation.
Dave
At 06:32 AM 3/10/2013, you wrote:
>On 3/9/13 8:04 PM, james hutton wrote:
>>
>>So I am looking at using a remote for turning my coil on and off.I 
>>made a remote using 433mhz rf transmitter/receivers for the 
>>coil.However as soon as the coil is on, it interfiers with the remote 
>>(which was anticipated.)
>
>Yes.. the inexpensive remote controls tend to be less EMI immune than 
>one might hope.
>
>
>I tried making a faraday cage around the
>>receiver, however still no luck.
>
>Well, the faraday cage will also shield the desired 433 MHz  (although, 
>I can imagine building a cage with holes that are sized to pass the 433 
>M, but not let in the 100kHz (and copious harmonics).  Or building a 
>suitable filter.
>
>Do you have the receiver schematic and design info?  What I would do is 
>put the receiver in a metal box with a decent coax connector.
>Then have a good high pass filter in another box with the antenna.
>
>One problem you'll have is that most spark gap TCs radiate a fair 
>amount of VHF noise (from the wires going to/from the primary spark 
>gap, I believe).
>
>
>How is the receiver connected to the "power switch".  you might be 
>getting noise back through the AC line into the receiver as well.
>
>I know there is the option of IR, but
>>I wanted to avoid making it an IR remote because then there is much 
>>less range and you need to point the remote at the receiver.Has anyone 
>>ever made a remote for their coil successfully that was not infrared?I 
>>am also thinking of using an IR laser diode as apposed to a typical IR 
>>led if I must make the remote IR.I wouldnt be focusing it with a lens, 
>>I just think that since the laser diode is much brighter and more 
>>powerful than an led it would give me much more range.And I would 
>>obviously need a driver to power the laser diode that can handle the 
>>IR pulses sent from the microprocessor.thoughts?
>
>What might work better is building something like an IR flashlight. 
>Gang up a bunch of IR LEDs in series and a driver transistor and a 
>bigger battery.
>
>
>
>
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