Hydroponics Online Store



Hydroponic Systems

Hydroponic Grow Lights & Bulbs

Hydroponic Tents & Grow Boxes

Hydroponic Ballasts

Grow Light Reflectors

Hydroponic Nutrients

Grow Media Rocks

Hydroponic Pumps

Hydroponic Pots

Hydroponic Books

Meters

Hydroponic Exhaust Fans

Hydroponic Seeds

Hydroponic Foggers

Home Store Blog Forums FAQs Lesson Plans Pictures


Search:



Vintage Spark Gap for Old Radio Transmitter - Marconi Patent Wireless Antique For Sale


Vintage Spark Gap for Old Radio Transmitter - Marconi Patent Wireless Antique
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.



Buy Now

Vintage Spark Gap for Old Radio Transmitter - Marconi Patent Wireless Antique:
$177.50

An early 1900\'s Marconi Spark Gap. U.S. Patent No. 763,722 A \"Apparatus for Wireless Telegraphy\" Filed Nov. 10, 1900 Issued June 28, 1904 to Guglielmo Marconi for improvements in apparatus in wireless telegraphy. This vintage Spark Gap is from a pre-broadcast era radio transmitter setup.

Original manufacture, nickel plated and mounted on a white porcelain base. It has 2 stickers on the bottom of the base, \"Licensed under Marconi Patent 763,722\" and \"This apparatus is only licensed to be used in a duly licensed wireless set which is used experimentally for purposes of study or instruction, and for no other purpose.\" It is in fabulous overall condition, missing one binding post. This Spark Gap measures approximately 5-3/8\" L x 2-1/2\" W x 3-1/4\" H. A nice piece of antique radio history for display!

You will receive the item pictured. Include all shipping information with your payment for thequickest delivery. We ship only in the continental United States. Please contact us with any questions or concerns. Thank you forlooking!




Buy Now


 

Hydroponic Forum Discussions:


Popular Hydroponic Items: