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No filament! Wrong theory.. Synchrnous spark!. Ed On 6/11/2020 3:35 AM, Teslalabor wrote:
Looks like filament transformer. No high voltage. Am 10.06.2020 um 20:25 schrieb Chris Reeland:Hi all,I thought I would share this unusual and historic transformer from "1917"that I came across on eBay recently. https://www.ebay.com/itm/363014955765I will admit, I am not so big on the hefty price, but it is interesting init's design. Also looks in great condition.I find the lever control interesting for some kind of movable shunt. I am not sure what is completely all moving there. Can only see so much lookingat all pictures, which are all pretty decent. And I will admit, overall, puzzled on some other things.Nameplate unfortunately does not give output voltage, but I am assuming itis up there quite a bit, looking at secondary. Looks to be a fairly heavy fella also.Do not know the dimensions, none listed, but looks fairly big compared tothe nameplate.Anyways, I hope some others here find this interesting as I did. For me, Ihad not seen this design until now. And maybe some others have some further comments possibly. Well...I was just about to send this in... decided to search a little some...got a few things I was wondering about. https://www.radiomuseum.org/r/thordarson_spark_gap_<https://www.radiomuseum.org/r/thordarson_spark_gap_transformer_type_r.html>transformer_type_r.html<https://www.radiomuseum.org/r/thordarson_spark_gap_transformer_type_r.html>https://books.google.com/books?id=OMqvQcHovzgC&pg=PA168&lpg=PA168&dq=Thordarson+Type+R&source=bl&ots=babfMQKLun&sig=ACfU3U1WpuuLi1iBkeN_ZdEJhwp1USzBcA&hl=en&sa=X&ved=2ahUKEwiui5q45vfpAhU2RDABHayGAtYQ6AEwEXoECAUQAQ#v=onepage&q=Thordarson%20Type%20R&f=falseChris Reeland Ladd Illinois USA Sent from my Samsung Galaxy Tab® S _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxxxxxx https://www.pupman.com/mailman/listinfo/tesla_______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxxxxxx https://www.pupman.com/mailman/listinfo/tesla
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