Author Topic: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information  (Read 986 times)
Bush DAC90A
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Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « on: November 24, 2022, 02:16:26 PM » Author: Bush DAC90A
Hi Has anyone got any pictures and information for the leak transformer  that was used for only the Thorn 200W SLI/H hight output lamp as if I can find out starting  duration & voltages current as these are different to the normal SLI/H lamp might be able to get a leak transformer made as it is very difficult  to find an original leak transformer or a 175W CWA metal halide transformer here in the UK any help would be appreciated. kind regards Bob
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Rommie
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #1 on: November 24, 2022, 02:37:43 PM » Author: Rommie
The specs for the lamp can be found on Lamptech, see here; the tube shown is the 5-leaf version, which seems to be rather rare, but electrically the 4-leaf one should be the same. I've only ever seen one genuine ballast, but I don't have a photo, sadly.
If you can actually get one made, get two, I'll have one, as long as it doesn't cost an arm or leg, I need the ones I have  :mrg:
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Bush DAC90A
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #2 on: November 24, 2022, 02:46:06 PM » Author: Bush DAC90A
Hi Rommie what I need to know is the starting current and voltage and duration as this lamp is different as you know been a HO it won't work on a pre head start .If can find out that information I might be able to get some made and you will be the first to have one if he can make them for a reasonable cost kind regards Bob  :lol:
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Rommie
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #3 on: November 24, 2022, 02:52:27 PM » Author: Rommie
I only know what James says on Lamptech I'm afraid, might be worth sending him a PM..? Mine certainly starts on a 135/180W leak transformer, although it's been a while and I don't recall the figures. It wasn't ideal though, a little under-driven if I recall.

As I said, I run mine on a US 175W CWA MH ballast on a 115V 60Hz inverter, which works for me, but I already had both of those when I got the lamp, so you might not want to spend the extra $$ importing them..!
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Bush DAC90A
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #4 on: November 24, 2022, 03:11:30 PM » Author: Bush DAC90A
Thanks I will pm James kind regards Bob :lol:
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James
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #5 on: November 24, 2022, 05:20:44 PM » Author: James
I do have an original Thorn SLI/H 200W ballast, it is built in quite deep into my ballast cabinet!  If you need a photo I will dismantle that.  But perhaps instead it would be enough to make some electrical measurements?  If you know which parameters you need I can try to measure those at work.
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Olav
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Olav Kettner
Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #6 on: November 24, 2022, 06:54:00 PM » Author: Olav
Hello Bob,

a difficult search.
I only have this information for you from 1973/1974.
That looks very modern for the time.
Maybe it helps anyway.



Source: THORN LIGHTING, Comprehensive Catalogue 1973/74


Regards

Olav
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Bush DAC90A
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #7 on: November 27, 2022, 04:12:35 PM » Author: Bush DAC90A
Thanks very much Olav a big help kind regards bob
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Olav
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Olav Kettner
Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #8 on: November 27, 2022, 05:39:42 PM » Author: Olav
You are welcome Bob.
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Bush DAC90A
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #9 on: November 27, 2022, 05:41:40 PM » Author: Bush DAC90A
Thanks  :lol:
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Olav
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Olav Kettner
Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #10 on: January 07, 2023, 08:04:10 AM » Author: Olav
Hello Bob,

I found a little addition for you:



Source: THORN comprehensive catalogue 1969-1970, page C12



Source: THORN comprehensive catalogue 1969-1970, page C15


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Olav
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Bush DAC90A
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #11 on: January 07, 2023, 11:34:39 AM » Author: Bush DAC90A
Thanks Olav that I great kind regards Bob
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Re: Thorn 200W SLI/H High Output Lamp Leak Transformer Pictures And Information « Reply #12 on: January 07, 2023, 11:40:54 AM » Author: Bush DAC90A
I do have an original Thorn SLI/H 200W ballast, it is built in quite deep into my ballast cabinet!  If you need a photo I will dismantle that.  But perhaps instead it would be enough to make some electrical measurements?  If you know which parameters you need I can try to measure those at work.
Hi James what I need to know is the starting voltage and duration with a lamp connected  and what voltage does the ballast produce with the lamp disconnected if that is possible kind regards Bob
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