How to light a single 6.6A series incandescent lamp..? « on: January 22, 2021, 06:28:39 PM » Author: Rommie
I've just acquired a 6.6A series incandescent lamp made by Osram, and I'm wondering the best way to go about lighting it. I know relatively little about incandescent series street lighting, as I'm not aware of it ever being used in any areas of the UK that I am familiar with, but I know it was popular in the US. Is there a safe voltage I could use on the Variac or would I need some form of current limiting device..? Thanks in advance, Ria
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Ria (aka Rommie) in Aberdeen
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	Re: How to light a single 6.6A series incandescent lamp..? « Reply #1 on: January 22, 2021, 06:40:12 PM » Author: LightsDelight
If you have a multimeter you can measure the resistance and use the ohms law formula: V=I*R.
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	Re: How to light a single 6.6A series incandescent lamp..? « Reply #3 on: January 22, 2021, 07:00:36 PM » Author: Rommie
Thanks, that was good advice. I ran it on the Variac with the multimeter as an ammeter and it got up to 7V, probably around 6.6V..! Doesn't seem like a lot, but then I suppose with lots of lamps all in series it adds up. Very interesting, I have learnt something today
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Ria (aka Rommie) in Aberdeen
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	Re: How to light a single 6.6A series incandescent lamp..? « Reply #4 on: January 23, 2021, 10:07:40 AM » Author: Mandolin Girl
It was wonderful to see it lit
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	Re: How to light a single 6.6A series incandescent lamp..? « Reply #5 on: January 23, 2021, 05:30:53 PM » Author: Medved
Quote from: Mandolin Girl on January 23, 2021, 10:07:40 AM It was wonderful to see it lit  Do you have a picture of it?
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	Re: How to light a single 6.6A series incandescent lamp..? « Reply #6 on: January 23, 2021, 05:40:45 PM » Author: Rommie
Quote from: Medved on January 23, 2021, 05:30:53 PM Do you have a picture of it? We do, see here:  unlit and lit
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Ria (aka Rommie) in Aberdeen
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	Re: How to light a single 6.6A series incandescent lamp..? « Reply #8 on: July 06, 2021, 01:43:46 PM » Author: Rommie
Yeah, I've got two or three of them in series on the Variac now. It's an interesting concept, we never had it here.
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Ria (aka Rommie) in Aberdeen
Administrator, UK & European time zones. Any questions or problems, please feel free to get in touch

"What greater gift than the love of a cat..?" - Charles Dickens
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