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    Modifying a 4ch FM TX for a rotary switch
    by jbkiwi ๐Ÿ‡ณ๐Ÿ‡ฟ ( Rear Admiral)
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    RNinMunich
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    ๐Ÿ“ Modifying a 4ch FM TX for a rotary switch
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    Online: 1 hour ago
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    JB. The ABSOLUTE last thing any of us want is for you to have to electricackle through your drawers!!โšก๐Ÿค‘๐Ÿ’ฅ๐Ÿ˜ญ
    Oooh! Naasty!
    ๐Ÿ˜Ž
    1
    The Bugs are on the run ๐Ÿ˜Š โ„๏ธโ„๏ธโ„๏ธ Get out and run those Sea Trials!! ๐Ÿ˜‰ Cheers Doug
    jbkiwi
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    ๐Ÿ“ Modifying a 4ch FM TX for a rotary switch
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    Country: ๐Ÿ‡ณ๐Ÿ‡ฟ New Zealand
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    Probably was 10k Doug, couldn't be rs'd rummaging through my electricackle drawers to find the spares to check (bought a few at the time in case any smoke got out๐Ÿ˜)
    JB
    1
    RNinMunich
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    ๐Ÿ“ Modifying a 4ch FM TX for a rotary switch
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    Did something similar on my Graupner MC-10 some years ago JB
    Didn't like the price of their '4 Channel Add on module'.
    So I rummaged around in the 'bits box' and found three miniature switches; push button (Honk Honk๐Ÿ˜), ON/OFF (Lights, Smoke etc), 3 way ON/OFF/ON (for two functions TBD), and a small 10K pot (crane/turret traverse etc). In those days the switching was done at the RX end by microswitches on servos or my home brew decoder / relay board.
    Worked a treat an' did'n cost me nuffink๐Ÿ˜Š
    Odd! All TXs I've investigated had 10K pots!
    Cheers, Doug ๐Ÿ˜Ž
    2
    The Bugs are on the run ๐Ÿ˜Š โ„๏ธโ„๏ธโ„๏ธ Get out and run those Sea Trials!! ๐Ÿ˜‰ Cheers Doug
    jbkiwi
    Rear Admiral
    ๐Ÿ“ Modifying a 4ch FM TX for a rotary switch
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    Country: ๐Ÿ‡ณ๐Ÿ‡ฟ New Zealand
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    I modified this Acoms 4ch FM TX about 12 yrs ago to use one of the stick channels for a rotary switch on a 3ch aircraft,- with flaps for the 4th channel. I managed to fit a pot (8k from memory - matches existing pots) into the case and took the wires from the pot supply from the board, cut them and fitted 3 pin M+F plugs (from an old printer) to both sides, plus another plug for the new pot. I can plug in the rotary or stick pots to suit different models if needed (ie std 4ch or 3 stick and 1 rotary ch.) This can probably be done with many simple TXs where a rotary is needed for fine control (maybe a fire monitor or similar.) or you could make them all rotary for a special purpose. I also fitted a toggle on/off sw as the slide sw was defective
    JB
    2



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