The reostat has 2 wires, potentiometer has 3 and works as a voltage divider.<div>All of the modern motor controllers have potentiometers. </div><div>I have just set up a motor speed controller but are using a joy stick, which you may want to switch to. Just find one with the same value as the potentiometer you are using. You can get "spring to centre" so if you let go you get zero speed. Just a bit easier than a dial.</div><div>Alan<br><div><br><div id="ymail_android_signature"><a id="ymail_android_signature_link" href="https://mail.onelink.me/107872968?pid=nativeplacement&c=US_Acquisition_YMktg_315_SearchOrgConquer_EmailSignature&af_sub1=Acquisition&af_sub2=US_YMktg&af_sub3=&af_sub4=100002039&af_sub5=C01_Email_Static_&af_ios_store_cpp=0c38e4b0-a27e-40f9-a211-f4e2de32ab91&af_android_url=https://play.google.com/store/apps/details?id=com.yahoo.mobile.client.android.mail&listing=search_organize_conquer">Yahoo Mail: Search, organise, conquer</a></div> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Tue, 30 Sept 2025 at 8:42 am, Rick Patton via Personal_Submersibles</div><div><personal_submersibles@psubs.org> wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> <div id="yiv8603643526"><div><div dir="ltr">Hi Alan, <div>I thought they were the same?</div><div>There is a black box and then from there it goes to the dial that you turn for direction and speed of prop.</div><div><br clear="none"></div><div>Rick</div></div><br clear="none"><div class="yiv8603643526gmail_quote yiv8603643526gmail_quote_container"><div id="yiv8603643526yqtfd90595" class="yiv8603643526yqt5307932160"><div dir="ltr" class="yiv8603643526gmail_attr">On Mon, Sep 29, 2025 at 9:37 AM Alan James via Personal_Submersibles <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;" class="yiv8603643526gmail_quote">Rick,<div>It will likely be a potentiometer rather than a reostat. </div><div>Check it's not wired wrong first. </div><div>Let me know and we can go from there.</div><div>Alan<br clear="none"><br clear="none"><div id="yiv8603643526m_-7307547152080062125ymail_android_signature"><a rel="nofollow noopener noreferrer" shape="rect" id="yiv8603643526m_-7307547152080062125ymail_android_signature_link" target="_blank" href="https://mail.onelink.me/107872968?pid=nativeplacement&c=US_Acquisition_YMktg_315_SearchOrgConquer_EmailSignature&af_sub1=Acquisition&af_sub2=US_YMktg&af_sub3=&af_sub4=100002039&af_sub5=C01_Email_Static_&af_ios_store_cpp=0c38e4b0-a27e-40f9-a211-f4e2de32ab91&af_android_url=https://play.google.com/store/apps/details?id=com.yahoo.mobile.client.android.mail&listing=search_organize_conquer">Yahoo Mail: Search, organise, conquer</a></div> <br clear="none"> <blockquote style="margin:0px 0px 20px;"> <div style="font-family:Roboto, sans-serif;color:rgb(109,0,246);"> <div>On Tue, 30 Sept 2025 at 8:03 am, Rick Patton via Personal_Submersibles</div><div><<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</div> </div> <div style="padding:10px 0px 0px 20px;margin:10px 0px 0px;border-left:1px solid rgb(109,0,246);"> _______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a>ely<br clear="none"> </div> </blockquote></div>_______________________________________________<br clear="none">
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