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Leader Tubes

Leader Imports - likely a French import made by Radiotechnique or Grammont

d/b/a La France Import & Sales Co.? needs investigation


First seen: 06-Jul-1924
Last seen: 29-Apr-1925

Brand(s): Leader

I suspect that there was more than one 'Leader' brand, or that the brand was resurrected.

Leader is a difficult search term, matching items from Leader tire tubes, and Leader cigarette tubes.

Leader is likely a tube initially imported from France. Earliest variation are probably the Moorhead shaped envelope variants, as diagramed in the first advertising. Shortly after - maybe 2000 tubes later? - they switched to using a 'golf ball' shaped envelope. These style changes corresponded with other 'french tubes' of the time. It is also possible that at the end of the run, some tubes used the S-14 envelopes, or perhaps some early cylinder plate tubes were repaired with replacement envelopes. There are no bakelite base or tipped variation of Leader (imported) tubes.

The Leader brand resurfaces 5 years later around 1931. This is a different brand, which is unsurprising since the name Leader had name power in advertising and had been used by others for Radio branding.

All variants of this early brand are rare. It would be unusual to see two for sale in a year of auctions. An early version was found paired with a printed cardboard tube, but so few examples exist that it's unclear if this was standard throughout their production. I also believe that all examples of this brand use cardboard base inserts through which the pins are inserted

During this era it was not unheard of to see VT-2 pin configurations. Be careful with these tubes! If in doubt - sell them to me! :) 

I would love to hear from collectors or french tube historians about early french imports of 'universal' or 'type R' valves.

 

Leader variants:

 
L
E
A
D
E
R
Amp/Det
1
Tube
{v1} Moorhead style, brass base, tipped, 4v DC, 0.75amps?, ink stamped, cylindrical plate, likely serialized {likely french import}


L
E
A
D
E
R
Amp/Det
2
Tube
{v2} Golf Ball style, bakelite base, tipped, ink stamped, likely serialized


L
E
A
D
E
R
Amp/Det
3
Tube
{v1} Globe, brass base, tipped, 6v DC, 0.75amps?, cylindrical plate, likely serialized, cardboard base insert, deep red getter


  
Leader variant
 
 
 
 

{v3} "Leader" "Amplifier - Detector" with globe envelope, red getter and cardboard base insert.[1]



We may learn something about the real manufacturer by the nearly unique packaging approach of using capped cardboard tubes. Other 'french style' tubes did also, such as Le Radion, and Le Deluxe. Please share pics of yours if you have one!

 



Bibliography references:
  1. eBay auction listings, 2018
  2. The Chicago Tribune, Chicago, IL, 06-Jul-1924, pg. 53. From Newspapers.com. Retrieved 30-Apr-2019. *
  3. The Pittsburgh Press, Pittsburgh, PA, 25-Jul-1924, pg. 23. From Newspapers.com. Retrieved 30-Apr-2019. *
  4. The Pittsburgh Press, Pittsburgh, PA, 08-Aug-1924, pg. 23. From Newspapers.com. Retrieved 30-Apr-2019. *
  5. The Pittsburgh Daily Post, Pittsburgh, PA, 20-Aug-1924, pg. 29. From Newspapers.com. Retrieved 30-Apr-2019. *
  6. The Suburbanite Economist, 17-Sep-1924, pg. 13. From Newspapers.com. Retrieved 30-Apr-2019. *
  7. The St. Louis Post-Dispatch, St. Louis, MO, 10-Oct-1924, pg. 13. From Newspapers.com. Retrieved 30-Apr-2019. *
  8. The Chicago Tribune, 24-Dec-1924, Chicago, IL, pg. 82. From Newspapers.com. Retrieved 30-Apr-2019. *
  9. The St. Louis Post-Dispatch, St. Louis, MO, 20-Feb-1925, pg. 10. From Newspapers.com. Retrieved 30-Apr-2019. *
  10. The Pittsburgh Press, Pittsburgh, PA, 20-Mar-1925, pg. 18. From Newspapers.com. Retrieved 30-Apr-2019. *
  11. The Suburbanite Economist, 29-Apr-1925, pg. 15. From Newspapers.com. Retrieved 30-Apr-2019. *

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