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Old mercury vapor ballast type question H44 vs H38   Message List  
Reply | Forward Message #6148 of 6189 |
Re: [streetlights-l] Re: Old mercury vapor ballast type question H44

I did a rigging on firing up and making one...I simpy took a regular
medium based ceramic socket and removed the socket shell and put a wire
on the side.....then added a mogul base that came off of a defective
lamp onto a ceramic shell making a Mogul to admedium adaptor....

Hope I made it clear, if not clear enough ill try to provide a pic! I
have 2 lamps that needs those sockets........

-Jace


On Tue, 30 Jun 2009 12:19 am, Stanley Chiang wrote:
> I found one on-line merchant that sells the admedium socket for $68 a
> piece.
>
> https://www.interlight.biz/light-bulb/SOCKET-ADMEDIUM
>
> Now that's a heck of a lot more expensive than the unusual lamps
> themselves! Must be a very low moving item.
>
> Don't think I'll be getting my H44 Par mercury lamp fired up anytime
> soon.
>
> --- In streetlights-l@yahoogroups.com, Don Klipstein <don@...> wrote:
>>
>> leel@... wrote:
>>
>> > I thought I remembered that there was a version of this lamp offered
>> > with the standard medium base at some point and I managed to find
>> the
>> > evidence in an old Philips catalog from June of 1997. At that time,
>> both
>> > Philips and Osram-Sylvania made this lamp in the medium base
>> version. So
>> > even if you can't find the socket you may be able to find the medium
>> > based PAR 38 somewhere yet, especially if they were still available
>> in
>> > 1997. The admedium socket went scarce long before then.
>>
>> I have what appears to me to be a 1999 "SAG-100" Philips catalog. They
>> had then 100 watt PAR-38 mercury with medium skirt base and admedium
>> skirt
>> base.
>>
>> Notably, the admedium version has then-current ordering code
>> H44GS-100,
>> and a noted "Former code or trade name" of H38-4GS.
>>
>> Meanwhile, I am finding elsewhere that some 100 watt mercury lamps
>> have
>> H38 ANSI code and some have H38/H44 ANSI code.
>>
>> Also, I see a nominally 100 watt one said to be H44 here:
>>
>> http://www.saveonlighting.com/i-sylvania_68843-5290.htm
>>
>> And, it has admedium skirt base!
>>
>> I did try web searching for what is the difference between H38 and
>> H44,
>> or what the H38 and H44 specifications individually are. I have yet to
>> find these. This could require purchasing the relevant ANSI standard
>> from
>> ANSI.
>>
>> - Don Klipstein (don@...)
>>
>
>



Tue Jun 30, 2009 7:32 am

jecwhiz
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Message #6148 of 6189 |
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I happened to come across a very old 100 watt H44 Par 38 mercury vapor floodlight with a black opaque coating on the outside of the reflective coating. It had...
Stanley Chiang
nutrition_man2
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Jun 29, 2009
2:12 am

... I happen to have a blacklight setup with an H44 MV spot and H44 ballast, lamp is also admedium and has the woods BL lens. I cant remember where or when I...
rlshieldjr
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Jun 29, 2009
4:23 am

Hi Stanley, Don't think there would be any difference between an H44 or an H38 as both are 100 watt merc lamps, and presumably both operate on approx 850 mA at...
leel@...
leel1052
Offline Send Email
Jun 29, 2009
4:29 am

I thought I remembered that there was a version of this lamp offered with the standard medium base at some point and I managed to find the evidence in an old...
leel@...
leel1052
Offline Send Email
Jun 29, 2009
5:44 am

... I have what appears to me to be a 1999 "SAG-100" Philips catalog. They had then 100 watt PAR-38 mercury with medium skirt base and admedium skirt base. ...
Don Klipstein
don@...
Send Email
Jun 29, 2009
10:08 pm

I found one on-line merchant that sells the admedium socket for $68 a piece. https://www.interlight.biz/light-bulb/SOCKET-ADMEDIUM Now that's a heck of a lot...
Stanley Chiang
nutrition_man2
Offline Send Email
Jun 30, 2009
4:20 am

I did a rigging on firing up and making one...I simpy took a regular medium based ceramic socket and removed the socket shell and put a wire on the...
Jason Chapman
jecwhiz
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Jun 30, 2009
7:33 am

That's pretty expensive for a socket. It seemed to me the socket that whoever it was turned up the last time we had discussions about admedium bases was more...
leel@...
leel1052
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Jun 30, 2009
7:39 am

... I have one of those lamps, and I've lit it up before by making a crude socket out of a block of wood. Just take a piece of 2x4, bore a hole about an inch...
James
james10952001
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Jul 1, 2009
12:21 am

I am not sure if you saw my post of how I made my own adaptor.....so just look at earlier post to check out how to make one ;-)...
Jason Chapman
jecwhiz
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Jul 1, 2009
6:27 am

... I saw it after I had posted my response. Friends of mine own a machine shop, so I've considered trying to make a proper socket. Would not be impossible to...
James
james10952001
Offline Send Email
Jul 1, 2009
4:45 pm

I've seen those expensive admedium sockets. Seems ridiculous to pay that for a socket, even though it's an obsolete type. I like the idea of wrapping copper...
Larry Rogak
therogakreport
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Jul 21, 2009
9:41 pm

http://www.lamptech.co.uk/Spec%20Sheets/Sylvania%20H44.htm Sylvania still makes the equivalent lamp with a medium base... but they can be a little spendy. I...
Jim Terry
lighthumor
Online Now Send Email
Jun 29, 2009
4:32 pm

Philips apparently doesn't make it anymore. It was listed in the June '97 catalog I found but not in the latest catalog I have here, which was from 2004. I...
leel@...
leel1052
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Jun 29, 2009
5:22 pm
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