Rare Wireless Early Thordarson Type T - 0 Flexible - Type Spark Transformer 1/2KW
Item History & Price
| Reference Number: Avaluer:20546156 | Model: Type T-0 1/2 KW Transformer |
| Brand: Thordarson Electric Mfg. Co. | Country/Region of Manufacture: USA |
Please be sure to review all my other auctions after you have looked at this one! I will be listing a broad and diverse range of vintage communications and technology items, related books, periodicals and ephemera... Something for everyone!This is another one of the nicer wireless items I have been able to offer for sale in a while! From my personal collection, it is exactly the way I found it in the mid-1980's at the Peoria, Illinois hamfest!! This is a beautiful example ...of an early, pre-WWI wireless spark transmitter system component! Here we have the earliest version of Thordarson wireless spark transformers! This is a Thordarson Type T-0 Flexible-Type 1/2 Kilowatt Spark Transformer produced in 1915! It has Serial Number: 2690. It measures about 8" across, 6.5" deep and 12" tall, weighing in at 35 pounds!The primary and secondary coils are mounted within the robust, open cast frame housing. It is referred to as a flexible transformer because it has a magnetic shunt in the shape of an extra core-leg above the primary. This shunt is hinged and has a wing nut and leaf spring arrangement to hold the magnetic shunt at any desired level! Both the primary and secondary windings show continuity!! When paired with a condenser of proper capacity, resonance can be acheived between the primary and secondary circuits of the spark transmitter.The unit is in remarkable condition given that it is over 100 years old! This stunning beast immediately sends you back in time...in some attic or shed...where the lighting dims with every key stroke!!I have tried to take good photographs, and they represent the condition accurately! If you have any questions, don't hesitate to ask...If you are a serious early wireless collector or in love with the smell of ozone and wireless spark transmission, this item belongs in your collection! There aren't many chances to add such an a piece to your shelves anymore!Properly packaged to arrive safely at your door, this parcel will weigh about 45 pounds. I will pack all items properly and with great care. I have been shipping these kind of vintage items worldwide since the late 1980's. Buyers are responsible for shipping, insurance and material costs, and any applicable duties. I usually can ship within one business day after receipt of confirmed payment. International customers bid with confidence! International shipping is not an issue!. .If you are new to eBay with no prior feedback please contact me prior to bidding...thanks! THANK YOU FOR LOOKING!
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