Author Topic: GE H85A3 lab arc mercury lamp + special ballast and socket  (Read 611 times)
Rommie
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #15 on: October 08, 2022, 04:51:54 PM » Author: Rommie
I did, lights*plus bought it on my behalf, $75 plus whatever it costs for him to ship it to me.

Pictures when I get it  8)
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Ria (aka Rommie) in Aberdeen
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #16 on: October 08, 2022, 06:11:25 PM » Author: lights*plus
With your permission, I could post a few pics here.
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Rommie
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #17 on: October 08, 2022, 06:12:53 PM » Author: Rommie
Yes, please do, waiting to get a better view than the eBay pictures..!
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Ria (aka Rommie) in Aberdeen
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #18 on: October 08, 2022, 06:59:00 PM » Author: lights*plus
Here are pics while testing.

I was expecting a larger & much brighter lamp but it's just over 5 inches in length and about as bright as a 40/50w MV. However, it is largely baffled in the hooded attachment. There's an open window which I'm sure was for an adjustable slit. I asked the seller to contact me if he finds it. The P.S. is in great condition. I also checked the spectrum, basic clean Hg line spectrum visually.

Here are some numbers with my Kill-a-Watt meter:
At 120.7 volts, 60.0Hz
Consumed Current= 2.17 amps
Power consumed = 128 Watts
Power Factor = 0.48
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Rommie
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #19 on: October 08, 2022, 07:02:54 PM » Author: Rommie
Thanks, the power factor sucks, I'll have to see what value capacitor works, if there's room inside. Is it an E26 or admedium cap, I can't quite tell from the picture  :wndr:
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Ria (aka Rommie) in Aberdeen
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #20 on: October 08, 2022, 07:21:42 PM » Author: lights*plus
I haven't opened the PS compartment. Seller said there are two transformer parts, which leads me to believe there might be a 240volt choke in there & a bump-up transformer. Should I open it?
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Rommie
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #21 on: October 08, 2022, 07:27:49 PM » Author: Rommie
If you want, let me know. What about the lamp cap..?
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Ria (aka Rommie) in Aberdeen
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #22 on: October 08, 2022, 07:44:10 PM » Author: joseph_125
Glad you ended up getting it. Must be an early one if it uses a separate transformer and choke coil.
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #23 on: October 08, 2022, 08:05:30 PM » Author: lights*plus
E26 cap, nicely fits any medium socket.

The ballast is the typical North American auto-transformer ballast. The seller might have seen the two coil segments and thought there were separate.
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Rommie
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #24 on: October 08, 2022, 08:23:12 PM » Author: Rommie
Thanks, looks in excellent condition and plenty of room for a PFC cap. Let me know when you're sending it  :bulbman:
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Ria (aka Rommie) in Aberdeen
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #25 on: October 08, 2022, 09:24:34 PM » Author: lights*plus
It's our Canadian Thanksgiving on Monday, so it will go out Tuesday. Sadly, I can't exploit free Tuesday shipping on CanadaPost.ca since it's going to the UK.

On the other hand, I can ship less the 2 kilos for free to the States. Or up to 5 kilos for free to Canada. Yes, every Tuesday for October one parcel is free shipping. So start trading!
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #26 on: October 08, 2022, 10:26:10 PM » Author: RadiantMV
Its great to know that another lamp collector got it and not someone looking for old lab equipment. I was about to get it myself if it stayed up a few days longer.
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #27 on: October 08, 2022, 10:53:32 PM » Author: LampLover
They’re both gone. Who got it?

Not I but hope Ria/Rommie got it :love:

Edit that is good that she go it and I didn't realize there were two pages sorry
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Re: GE H85A3 lab arc mercury lamp + special ballast and socket « Reply #28 on: October 08, 2022, 10:55:21 PM » Author: wide-lite 1000
 She did . She mentioned it at the top of this page .
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