Armond Perretta wrote:
Molesworth wrote:
hpeer wrote:
The AquaSignal units look fine but I can't find wiring info on their
web site.

I have three wires available only. I'm 90% certain that this is
fine. However, the AS info is just vague enough to make me unwilling
to pop for the bucks unless I am sure it will work ...
The DPO of my boat broke the 'Quicfits' mast head light and I had a
search running on ebay for months till one similar turned up. So I
bought it and it has four connectors whereas my old one has three. It
has a wiring diag, which I'll post when I find it. The Quickfit is a
good design and sturdy (for plastic).

The 4th wire was for models that included a strobe with the tricolor and the
anchor light. Way back when Aqua Signal offered models with tricolor only
(2 wire), tricolor and anchor (3 wire), and tricolor, anchor and strobe (4
wire). Some expert here may know of a method for "multiplexing" 2 wires to
control 2 separate bulbs. I am pretty sure I remember something like that
from long ago.

I like the _idea_ (in principle) of replacing the 25 watt bulbs in these
Series 40 lights with LEDs, but the tricolor LED is in the neighborhood of
$60 or so, and I am currently sitting on top of 5 or so of the old style
spare bulbs.

Armond,

Thanks, what you described is what I suspected and would anticipate.
It's just that the AS literature says 2/3/4 wire on a page that does not
describe the strobe. Perhaps I am being over cautious.

I think you could "multiplex" the two wires as you mention by using
steering diodes at the top and reversing the polarity at the bottom
though I would have to think it through and draw it out.

Howard