uv199.com

Lektrodio Corp.

Lektrodio Corporation, 12 Maple Street, Lynn, Massachusetts, USA
Lektrodio Corporation, 186 Market Street, Lynn, Massachusetts, USA {20-Feb-1927}


First seen: 01-Feb-1924
Last seen: 02-Dec-1928

Brand(s): Elektron

The Lektrodio Company registered their Elektron trademark 26-Aug-1924, claiming use since 01-Feb-1924. They vanished from advertising at the end of 1928.



Lektrodio and their Elektron tubes are listed in the Nov-1926 issue of Radio Retailing, pg. 70.

Their tube listings do not include a UV based 201A model. 

Elektron variants:

 
E T
L R
E O
K N
201-A
1
Tube
{v1} Globe, brass base, tipped, ink stamped "Elektron" "201A" "5v" ".25a"


  
Elektron variant
 
 
 
 

{v1} "Elektron" "201-A" with tip and ink stamped brass base. [2]


E T
L R
E O
K N
X-201-A
2
Tube
{v1} Globe, short bakelite base, tipless, engraved "Elektron" "X-201-A" {circa 1928}


  
Elektron variant
 
 
 
 

{v1} "Elektron" "X-201-A" with sold/test date of Christmas Eve, 1931. [2]


Dates after 1929 represent the date of sale, which often included a test, with date stamp, when sold years later in surplus. A very large volume of tubes were allowed by RCA to be cleared on the surplus market - they already knew the A/C barrier was stopping the piracy of the newest tubes.

 



E T
L R
E O
K N
199
1
Tube
{v1} tubular, brass base, tipped, ink stamped base "Elektron" "199" "3v" "0.6a"


Elektron 199 variant
 
 
 
 

{v1} "Elektron" "199" with brass base and tip. [3]

Not every 99 tube was well constructed. but the above example is still quite usable (I've run it in the Tri-City W-2). It came to me via a silent key's estate in Colorado - I expected a display uv-199 with tip, and received this working elektron!


 

E T
L R
E O
K N
199V
3
Tube
{v1} tubular, brass base, tipped, UV bottleneck base, ink stamped, "Elektron" "199V"



Lektrodio advertised until December 1928, the same time RCA patents clamped down. It's likely all tubes with dates after this are merely 'tested' dates, stamped at the point of sale sometimes years later when sold as surplus.

 



Bibliography references:
  1. Official Gazette US Patent Office, 26-Aug-1924, vol. 325, pg. 720. From Hathitrust.org. Retrieved 02-May-2019 *
  2. eBay auction listings, 2017. Courtesy of Fin Stuart. *
  3. Personal Collection, Chris Benson, uv199.com. *
  4. Radio Broadcast, Nov-1925, pg. 134. From AmericanRadioHistory.org. Retrieved 15-May-2019 *
  5. The Star Gazette, Elmira, NY, 04-Nov-1925, pg. 21. From Newspapers.com. Retrieved 15-May-2019 *
  6. Radio Broadcast, Dec-1925, pg. 271. AmericanRadioHistory.org. Retrieved 15-May-2019 *
  7. Popular Radio, Jun-1926, pg. 192. From AmericanRadioHistory.org. Retrieved 15-May-2019 *
  8. The Pittsburgh Press, Pittsburgh, PA, 20-Feb-1927, pg. 109. From Newspapers.com. Retrieved 15-May-2019 *
  9. The Salt Lake Tribune, Salt Lake, UT, 09-Oct-1927, pg. 37. From Newspapers.com. Retrieved 15-May-2019 *
  10. The San Francisco Examiner, SF, CA, 02-Dec-1928, pg. 102. From Newspapers.com. Retrieved 15-May-2019 *

Back to index