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  #1  
Old 09-15-2019, 10:20 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 5,828
Default Zenon Flash tube for Whelen Tip??

I have my Whelen HDACF system on the bench and apparently the tip strobes are no good. The plan is to get it working and sell it.

New ones (A610) from Whelen are $200+. Since we are experimental, I thought this might be a good place to experiment.

Has anyone used an COTS part for the bulb? The one below is the same spiral, voltage, and 50 J vs the 21J stated by the Whelen literature. It is $6.47

Comments?? Any experience?

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RV-7
Lord Kelvin:
I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.
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  #2  
Old 09-15-2019, 03:18 PM
Pmerems's Avatar
Pmerems Pmerems is offline
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 825
Default Should work

Years ago when building my RV4 I bought a used Aero Flash strobe system. One of the domes and bulbs were broken. I replace the strobe bulb with one from Radio Shack. Made a cardboard form to match the existing bulb base. Cast the new bulb assembly in the base form with white silicone sealant (Home Depot). Took several days for the silicone to cure. Worked great.

If you sell the strobe system, disclose you replaced the bulb with a COTS bulb.
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  #3  
Old 09-16-2019, 06:52 PM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 5,828
Default

Thanks, Paul, it appears the company is in Israel, and will be in the mail for a while. It was the only source I could find.

I bought 3 just in case. I was thinking about casting the same holder as you mentioned, good to know it will work.

Disclosure to new owner is certainly in order, I was thinking about running it for several one or two hr stints to check it out. Definitely experimental only, but may help others with the same problem. At least it can prove the power unit is good (or not)
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Lord Kelvin:
I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.
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  #4  
Old 09-17-2019, 01:12 PM
krw5927 krw5927 is offline
 
Join Date: Aug 2010
Location: Wichita, KS
Posts: 1,971
Default

Would either of these be pretty much a drop in replacement for what you have?

https://www.strobesnmore.com/Nova-Hi...ubes-Kits.html
https://www.strobesnmore.com/Nova-EZ...ubes-Kits.html

I once heard a rumor that this company was started by ex Whelen engineers. I've had their full strobe system in my RV since 2014, with over 400 hours usage, and it's running great (knock on wood).
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  #5  
Old 09-01-2020, 06:02 PM
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rjcthree rjcthree is offline
 
Join Date: Jan 2007
Location: Bay Village, OH
Posts: 951
Default Grrr

So I’m going to try to fit one of these replacements in my Whelen housing. One strobe dead tonight on preflight. Mfg date March of 2004, I bought them waaaaay in advance....or optimism. Only 136 hours of flight time. I can’t put $200 into a bulb. I’m going to start planning for the LED conversion with my condition inspection. For now, I just want flashy again. I’ll let everybody know if the project is easy or hard.
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  #6  
Old 09-01-2020, 06:10 PM
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emsvitil emsvitil is offline
 
Join Date: Oct 2019
Location: SoCal
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Default

I haven't bought anything from them, but here's the place the picture is from in the first post:

https://www.xenonflashtubes.com/
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  #7  
Old 09-01-2020, 07:01 PM
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rjcthree rjcthree is offline
 
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Location: Bay Village, OH
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Default Thanks

I went with the strobes and more, Im hoping to not lose the weekend.
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RV-9A N183RC/90432: tip-up, O320H2, Ellison, Dynon D180, CPi2, Sen GA, at KLPR
RV-8 83718, wing kit, tanks done, with a four year plus plan - on hold due to home move
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  #8  
Old 09-01-2020, 08:50 PM
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Toobuilder Toobuilder is offline
 
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Default

The "automotive" strobes from whelen are plug and play (connector, not molded base) and work fine. Still expensive, but much better than the aviation product.
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  #9  
Old 09-02-2020, 06:09 AM
edclee edclee is offline
 
Join Date: Aug 2008
Location: Lancaster, SC
Posts: 152
Default Strobe Replacement

[quote=BillL;1373753]I have my Whelen HDACF system on the bench and apparently the tip strobes are no good. The plan is to get it working and sell it.

New ones (A610) from Whelen are $200+. Since we are experimental, I thought this might be a good place to experiment.

Has anyone used an COTS part for the bulb? The one below is the same spiral, voltage, and 50 J vs the 21J stated by the Whelen literature. It is $6.47

Comments?? Any experience?

[/QU

Please post your results when you get the tubes. Would be great to know!
Ed
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  #10  
Old 09-02-2020, 06:23 AM
emsvitil's Avatar
emsvitil emsvitil is offline
 
Join Date: Oct 2019
Location: SoCal
Posts: 477
Default

You may need a bigger capacitor for the bigger bulb.

Then it might slow down the charge time, causing a slower flash rate.
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