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Thread: Service Offered: H1 Restoration

  1. #11
    John did a great job on my H1's. The end result was beyond spectacular. His work is highly recommended. 5 Stars!
    -Doug
    1973 911E
    1971 914

  2. #12
    Member #413 jaudette3's Avatar
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    As I mentioned I seem to be settling into a cycle of doing H1 restorations in batches, 2-3 a year. It seems to be the most efficient way to work with a process that involves two different platers. In any event, I'm preparing a batch to go out in the next week or two so the timing is good if you have a set you would like restored. I'm confident they will be complete in plenty of time for next years driving season.

    Thanks,
    John

    John Audette - Porsche Lighting Anorak

    NEW! Full Line of LED Headlamps
    Concours Restoration of SWB/LWB Headlamps & Turn Signals, H1's & H4's
    The Air Cooled 911 Light Resource => AudetteCollection.com

  3. #13
    Member #413 jaudette3's Avatar
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    Aluminum vs. Chrome Reflectors

    I'm sometimes asked why I go to all the trouble to have the reflectors restored with vapor deposited aluminum as opposed to simply chroming them. Chroming is a lot simpler as the process can be done a single plater as opposed to aluminum which requires having the reflectors prepared by one plater - copper -> nickel -> polishing - then sent to a second plater for the vapor deposited aluminum process. Also, it's much cheaper to just chrome plate them and admittedly the aluminum process is expensive.

    The reason? Chrome just doesn't work very well. Using silver as the standard for reflectivity, vapor deposited aluminum is 95.6% as reflective as silver, while chrome is 63.5% as reflective as silver. You lose almost 1/3 of the light with chrome as opposed to aluminum. Here are the numbers:

    chart2.jpg

    Reflectance Comparison
    Silver: .95512 = 100%
    Aluminum: .91320 = 95.6%
    Chrome: .60604 = 63.5%

    Source:
    Refractive Index
    http://refractiveindex.info/?shelf=m...=Cr&page=Rakic

    The central point of H1's is their shear brilliance. When done right they are flame throwers. It kind of defeats the purpose to decrease the light by a third with chrome plating. My goal is to restore H1's to as high a level as possible and vapor deposited aluminum, the process used by all modern automotive manufacturers, is the best way to go at this time.

    Cheers,
    John
    Last edited by jaudette3; 11-06-2014 at 02:59 PM.

    John Audette - Porsche Lighting Anorak

    NEW! Full Line of LED Headlamps
    Concours Restoration of SWB/LWB Headlamps & Turn Signals, H1's & H4's
    The Air Cooled 911 Light Resource => AudetteCollection.com

  4. #14
    Senior Member 72targa's Avatar
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    ^^^^^^^^^^ awesome technical info!...
    Peter Kane

    '72 911S Targa
    Message Board Co-Moderator - Early 911S Registry #100

  5. #15
    Engineer's Nightmare 70SATMan's Avatar
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    Spot on John. The original reflectors were not chromed and it would be a shame to decrease the productivity of the lights by taking a short cut in their restoration. I've used the same alum process when refurbing accessory light reflectors and when the alum is applied correctly, the outcome is stunning. I have had to send one pair of reflectors back because the alum started flaking off but, they stood by their process and replated them for me for free.

    Silvering, while originally used by light manufacturers WAY back in the day tarnishes over time and has to be maintained and when no longer able to be polished back out has to be replated anyway.
    Michael
    I am a speculating fool. The emperor said so.

    -Dusty 70S Coupe
    -Period Parts Whore of the Illuminati
    -S Registry #586

  6. #16
    Senior Member
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    John just returned two sets to me and let me say they are fabulous - incredible work.
    Kevin "Hangman" Lynch
    1967 912R (project) - color pending
    1968 Bahama Yellow 912
    Follow me on Twitter @LynchGreenDot

  7. #17
    Senior Member DavidRees's Avatar
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    Hi John, these look like mine!

    Prost...David

  8. #18
    Member #413 jaudette3's Avatar
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    Kevin: Thanks for the kind words. I'm glad you're pleased with them

    David: Good eye - those are your lights. They're at Freddie's by now.

    Cheers,
    John

    John Audette - Porsche Lighting Anorak

    NEW! Full Line of LED Headlamps
    Concours Restoration of SWB/LWB Headlamps & Turn Signals, H1's & H4's
    The Air Cooled 911 Light Resource => AudetteCollection.com

  9. #19
    Senior Member DavidRees's Avatar
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    John: Awesome & thank you again for "Brilliant" work!

    Prost...David

  10. #20
    Member #413 jaudette3's Avatar
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    H1 Restorations Underway

    There are a lot of folks here with freshening and restorations underway over the winter. Just letting you know that I have two sets of H1's in the early stages of restoration in case the timing syncs up with your project. I estimate they will be ready for delivery around March 1. The restorations are being done to my usual specs - Listed Here.

    The price is $1,600 (plus shipping) a set. PM for details if you're interested.

    Thanks,
    John
    Last edited by jaudette3; 11-09-2014 at 06:24 PM.

    John Audette - Porsche Lighting Anorak

    NEW! Full Line of LED Headlamps
    Concours Restoration of SWB/LWB Headlamps & Turn Signals, H1's & H4's
    The Air Cooled 911 Light Resource => AudetteCollection.com

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