john davidson 1 Posted September 19, 2021 Share Posted September 19, 2021 I am looking for a replacement switch for a cheap XK brand transmitter, sent for one from RS components but it is full size and spring biased to centre, not what I thought I was ordering. So perhaps if anyone has an old or broken transmitter with a three position switch ( 6mm dia ) please contact me thanks, John Quote Link to comment Share on other sites More sharing options...
FlyinFlynn Posted September 19, 2021 Share Posted September 19, 2021 The nomenclature for 3 position switches is as follows - biased, centre off on(off)on non biased on off on so for your application you want a on off on and not a on(off)on Hobbyking does a replacement 3 position switchTx switch but they only have the short handle ones.. Banggood has some too... google has a few offerings under "replacement 3 position tx switch" and select the shopping tab Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted September 19, 2021 Share Posted September 19, 2021 try eBay, got a replacement switch for my Spektrum DX6 from someone who was breaking a failed TX for parts. Quote Link to comment Share on other sites More sharing options...
Lima Hotel Foxtrot Posted September 19, 2021 Share Posted September 19, 2021 Support a local model shop! https://www.addlestone-models.co.uk/acatalog/SWITCH-MINIATURE-SPDT-CENTRE-OFF--ON-OFF-ON--FOR-POINT-MOTORS-EXP-28015.html Quote Link to comment Share on other sites More sharing options...
john davidson 1 Posted September 19, 2021 Author Share Posted September 19, 2021 Cheers Lima, duly ordered from Addlestone! regards John Quote Link to comment Share on other sites More sharing options...
john davidson 1 Posted September 23, 2021 Author Share Posted September 23, 2021 switch came today but it is spring loaded to the centre, how do I ask for one which is not? Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted September 23, 2021 Share Posted September 23, 2021 (edited) The one you have received is a " momentary switch " You want, as you say A 3 position switch Always, weekly, to be found on ebay Search Spektrum 3 position D switch Edited September 23, 2021 by Denis Watkins Quote Link to comment Share on other sites More sharing options...
RottenRow Posted September 23, 2021 Share Posted September 23, 2021 The switch you have is what is required for model railway point motors, which is what the shop description was. They usually require a short pulse of current to set the points to one way or the other, then the current is removed. If you can't find the correct switch on eBay then RS Components part number 734-7135 is typically what you want. This one has a round-section lever of about 1" length, but shorter ones are available too, as are flattened lever types. I don't know the length or style of your broken switch. Fits a 1/4" diameter hole and has solder tags. Brian. Quote Link to comment Share on other sites More sharing options...
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