Rare Wireless F. B. Chambers 1/2 KW Boxed Glass Plate Condenser C 1912 - 13




Item History & Price

Information:
Reference Number: Avaluer:20589761Brand: F. B. Chambers
Country/Region of Manufacture: USAModel: 1/2 KW Transmitting Condenser
Original Description:
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 of the nicer wireless items I have been able to offer for sale in a while! A beautiful example of an early, pre-WWI wireless spark transmitter system component! Here is a rare F.B. Chambers 1/2 KW Boxed Glass Plate Spark ...Transmitting Condenser, c1912-13! It is 13" wide, 10" deep, stands 5" tall and weighs in at 35 pounds...Sections are constructed from glass plates that are specially coated with foil and tied together. The correct number of completed glass sheets are assembled together to achieve the proper capacitance and then coated and impregnated with a non-hygroscopic resin to seal the units and prevent power leakage. Operating within a spark transmitter, the condenser is rapidly charged by the system transformer and then is discharged and re-energized as the operator keys the transmitter and the spark occurs across the gap... The unit is in remarkable condition given that it is about 107 years old! The cabinet shows the normal signs of wear for such an item with some dings and stains. One corner has a very small piece that appears to have beeen glued back to the the cabinet threshold trim. There are also some modest paint flecks (white) on the cabinet from some previous shack remodeling years ago, but easily removed if you desire. As a "purist", I have left everything as is...but it is up to you!Note that the Chambers tag has the 217 N. Ninth Street address which validates the early production date as the company left that address at the end of 1913.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 F.B. Chambers collector or in love with the smell of ozone and early 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 44 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!   

00229


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