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* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



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Sub Weekend, Sheringham, North Norfolk, Sat/Sun 30,31 July 2022

Bournville Dive-In, Birmingham, Sunday 4th Sept 2022

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Most users ever online was 180 on Tue Nov 05, 2019 6:03 am

Latest topics

» How to avoid cavitation for model boat propellers
electronic switcher? EmptyMon Jul 04, 2022 4:26 pm by Hermann

» digitising software
electronic switcher? EmptyFri Jul 01, 2022 11:19 pm by SimonH

» Simple telemetry system for openLRS (on 458Mhz)
electronic switcher? EmptyMon Jun 20, 2022 4:15 pm by geofrancis

» My collection of fibreglass moulds.
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»  Submarine weekend, Sheringham, Norfolk,30th and 31st of July 2022
electronic switcher? EmptyFri May 27, 2022 3:22 pm by david f

» WW2 mini sub build
electronic switcher? EmptySun May 22, 2022 10:43 pm by SimonH

» Papplewick Pumping Station 2022
electronic switcher? EmptySat May 21, 2022 9:39 am by david f

» Akula 1/144 scratch build
electronic switcher? EmptyThu May 19, 2022 7:51 am by redboat219

» Darnell U class wanted
electronic switcher? EmptySat May 14, 2022 8:19 am by david f

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4 posters

    electronic switcher?

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    Tom(ADMIN)
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    electronic switcher? Empty electronic switcher?

    Post  Tom(ADMIN) Tue Jun 28, 2011 9:35 pm

    John, is is possible to have an electronic 'widget' that will plug into my Robbe F-14 rx, that I can use to switch on my searchlamp and flashing beacons on my Neptune via the tx?

    At the moment I just plug the battery pack in to the light circuit to switch the lights on, but it would be better to be able to switch them on via the tx.

    The 'widget' needs to be capable of switching on the searchlight which contains 8 x 5mm diameter leds and the flashings beacons which are 10mm HiViz Ultra Brite leds run from an Action Electronics Pico flasher unit, the whole lot is powered by a five AAA sized cell pack.
    johnrobinson
    johnrobinson
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    electronic switcher? Empty widget thing a ma bob

    Post  johnrobinson Wed Jun 29, 2011 11:24 pm

    HI Richard
    You could do this useing a cmos chip to give you on off functions, chip would be linked to fets to drive leds or you could use a pic to do the same job again could use it to drive fets for leds which would be smaller as i would think you havent got much space, inside your neptune to play about with you could do a circuit board the size of a two pence piece to give you some idear of the size the unit would be but it would have to be done in surface mounted componants. Richard i have got just the circuit you could use for this has transmitter got toggle switch center off or are you going to use joy stick on stansmitter

    ALL THE BEST JOHN
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    Tom(ADMIN)
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    electronic switcher? Empty Re: electronic switcher?

    Post  Tom(ADMIN) Thu Jun 30, 2011 8:46 am

    John...talk English! I'm totally confused and I've only read the first two words!

    Can you make whatever is needed for me and let me know how much it will be, please?

    It'll need a standard Futaba plug, and an 8" long lead from the unit back to the rx. I'll be using an standard on/off/on switch on the tx.

    Thanks mate,


    Richard


    Last edited by Richard(Admin) on Thu Jun 30, 2011 12:26 pm; edited 1 time in total
    johnrobinson
    johnrobinson
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    electronic switcher? Empty rc switching unit

    Post  johnrobinson Thu Jun 30, 2011 10:10 pm

    HI ANDYN


    Don't take this the wrong way mate, but why would you want to use a servo to switch a micro switch on and off to switch on some L.E.DS, as what you are trying to do with the servo and micro switch will end up 12 times bigger than useing a pcb?

    I thought we had left the cave man times, we are now in the age of the micro chip and pics..I thought you where a lot older than 18, as we left these in the 1920's.

    It is very hard for me to look back at things like that when I'm an RF engineer and electronics engineer.


    John
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    Tom(ADMIN)
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    electronic switcher? Empty Re: electronic switcher?

    Post  Tom(ADMIN) Fri Jul 01, 2011 7:11 am

    I can't see how it's over-complicating things Andy?

    With the tiny little pcb board, all I do is stick it to the equipment tray with double sided tape, plug it into the rx, plug the flying lead into the lights, and that's it...job done.

    It's probably taken me longer to type this than it will to fit the board...
    johnrobinson
    johnrobinson
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    electronic switcher? Empty rc switch unit

    Post  johnrobinson Mon Jul 04, 2011 9:20 pm

    HI Richard
    Have made switching unit will send how to connect unit up, hopefully in post tomorrow
    All the best John
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    Tom(ADMIN)
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    electronic switcher? Empty Re: electronic switcher?

    Post  Tom(ADMIN) Mon Jul 04, 2011 9:23 pm

    Thanks John, much appreciated. I'll let you know when it arrives...
    david f
    david f
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    electronic switcher? Empty Re: electronic switcher?

    Post  david f Tue Jul 05, 2011 8:04 am

    Too late now that John has already built one but you can buy (for only a fiver incl £1 to RNLI) one of the evaluation PIC chips.The switcher one would drive several LEDS directly from the chip and, of course, it is tiny.

    Ahh well next time!

    (Actually I quite like Andy N's servo mod. They are so cheap and small now that they are crying out to be modified - where space permits.)


    Last edited by david f on Tue Jul 05, 2011 8:07 am; edited 1 time in total (Reason for editing : extra ideas)
    nigele(ADMIN)2
    nigele(ADMIN)2
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    electronic switcher? Empty needed

    Post  nigele(ADMIN)2 Fri Jul 08, 2011 10:08 pm

    Hi John,
    Richard tell's me you are doing some guidance systems for him,I must say that it is not before time,never has a man needed guidance more than Richard!!!!!!!!!!!!
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    Tom(ADMIN)
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    electronic switcher? Empty Re: electronic switcher?

    Post  Tom(ADMIN) Sat Jul 09, 2011 6:45 am

    Hmm...my finger is hovering over the 'delete' button..
    johnrobinson
    johnrobinson
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    electronic switcher? Empty Guidance system

    Post  johnrobinson Sat Jul 09, 2011 8:30 pm

    HI Nigel
    yes i think it is time that Richard had got guidance sytem fitted, i will have to design him a auto pilot and gps link so you always no where he is, when you won't him and we could also fit it with way points just like one of the planes that i did, sorry Richard only joking but i will be suprized if you don't get rid of this
    john
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    Tom(ADMIN)
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    electronic switcher? Empty Re: electronic switcher?

    Post  Tom(ADMIN) Sat Jul 09, 2011 9:02 pm

    mutter mutter...

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