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diy Electronic indicator switcher

Posted: Tue Jul 27, 2010 3:08 pm
by yamaha_george
Hi,
below is the Jpeg's of an electronic wizz kids design for an indicator electronic " relay " it does work had one on my T & T RD400.
Since it does not require a specific load "it just works" as he put it.


ImageImage

I hope this will put you guys using all LED indicators and part LED indicators & tail converters et al out of your misery.
The point to watch is the resistor calculation for wattage if using bulbs is not more than 45 watts per bike side ie drawing not more than 4Amps (although the switching transistor can handle 7 amps but does generate alot of heat at that point and may require a heat sink.

YMMV, please do not ask me anything beyond what you see this i NOT my design but I do have it working :-}

Re: diy Electronic indicator switcher

Posted: Tue Jul 27, 2010 7:08 pm
by ragedigital
Can I assume that he pulled the stock indicator relay and replaced it with this one?

Re: diy Electronic indicator switcher

Posted: Wed Jul 28, 2010 3:06 am
by yamaha_george
ragedigital wrote:Can I assume that he pulled the stock indicator relay and replaced it with this one?
RD,
yup replaced the old three pin tin can (old 70's Yamaha ) with this.

If you noticed there is even the dimensions so it fits the original Jap big 4 relay socket, That said he did originally mention that while mine worked "1st time" some sockets on the big 4 have swapped pins SO BE AWARE