From: "Finn Lassen" Received: from omr-a013e.mx.aol.com ([204.29.186.60] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 9986177 for flyrotary@lancaironline.net; Sat, 05 Aug 2017 19:06:43 -0400 Received-SPF: pass receiver=logan.com; client-ip=204.29.186.60; envelope-from=finn.lassen@verizon.net Received: from mtaout-mcc01.mx.aol.com (mtaout-mcc01.mx.aol.com [172.26.253.77]) by omr-a013e.mx.aol.com (Outbound Mail Relay) with ESMTP id AE6323800085 for ; Sat, 5 Aug 2017 19:06:26 -0400 (EDT) Received: from [192.168.1.3] (0x5b3139322e3136382e312e335d [174.227.11.217]) by mtaout-mcc01.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 35DEC38000082 for ; Sat, 5 Aug 2017 19:06:26 -0400 (EDT) Subject: Re: [FlyRotary] Cheap strobe To: Rotary motors in aircraft References: Message-ID: Date: Sat, 5 Aug 2017 19:06:24 -0400 User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------2D2432BBF317D132CB9934F2" x-aol-global-disposition: G x-aol-sid: 3039ac1afd4d59864f722ed9 X-AOL-IP: 174.227.11.217 This is a multi-part message in MIME format. --------------2D2432BBF317D132CB9934F2 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit 31325 OP and 31559 PS? Pictures please. Having a hard time visualizing three LEDs creating a 180 degree dome mounting them in a triangle. Is it possible to dim them to use for landing lights? Finn On 8/4/2017 11:04 PM, Ernest Christley wrote: > For nearly 15 years, this list has been invaluable to me, and it has > been very seldom that I've been able to give anything back. But, I > hope this helps. > > mpja.com has 10W LEDs for $2.95 each. Each strobe takes three of > them. You also need the 30W power supply for each strobe. Another > $8.95. I've put a scope on the input and output. It doesn't generate > much in the way of noise. Just a constant current. > > There is a seller on Ebay selling "Grimes wingtip light". You can get > two for $16 or one for $6. > > In America, any of the chain auto parts stores carries the EP36 > flasher from Novita. Takes one for more strobes than you'll want to run. > > Battery -> Strobe switch -> EP36 -> Input to each of the power > supplies -> three LEDs in series -> back to power supply -> back to > EP36 -> ground > > Once set up, connect to a battery, but do not look directly at this beast. > > For my first pass, I cut a strip of aluminum, 1"x3.5". Folded into a > triangle with 1" sides. Rivet an LED to each side. > > To fit it in the wingtip light, I'm cutting a piece of aluminum sheet > to replace the bulb and rivet to the housing. Where the light was, > I'm cutting the aluminum and letting it fold up from the center to > form three mounting faces where I'll rivet the LEDs. --------------2D2432BBF317D132CB9934F2 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

31325 OP and 31559 PS?

Pictures please. Having a hard time visualizing three LEDs creating a 180 degree dome mounting them in a triangle.

Is it possible to dim them to use for landing lights?

Finn

On 8/4/2017 11:04 PM, Ernest Christley wrote:

For nearly 15 years, this list has been invaluable to me, and it has been very seldom that I've been able to give anything back. But, I hope this helps.

mpja.com has 10W LEDs for $2.95 each. Each strobe takes three of them. You also need the 30W power supply for each strobe. Another $8.95. I've put a scope on the input and output. It doesn't generate much in the way of noise. Just a constant current.

There is a seller on Ebay selling "Grimes wingtip light". You can get two for $16 or one for $6.

In America, any of the chain auto parts stores carries the EP36 flasher from Novita. Takes one for more strobes than you'll want to run.

Battery -> Strobe switch -> EP36 -> Input to each of the power supplies -> three LEDs in series -> back to power supply -> back to EP36 -> ground

Once set up, connect to a battery, but do not look directly at this beast.

For my first pass, I cut a strip of aluminum, 1"x3.5". Folded into a triangle with 1" sides. Rivet an LED to each side.

To fit it in the wingtip light, I'm cutting a piece of aluminum sheet to replace the bulb and rivet to the housing. Where the light was, I'm cutting the aluminum and letting it fold up from the center to form three mounting faces where I'll rivet the LEDs.

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