radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

201A

Information - Help 
ID = 13502
       
Country:
United States of America (USA)
Brand:
Common type USA tube/semicond.
Common type USA tube/semicond. Ace Electrical Laboratory; Newark, NJ Advance Battery Corp.; Brooklyn Air Castle - tubes Air King - tubes Air Scout - tubes Airhawk - tubes Airline, Super-Airline, Wards (tubes) - see also Montgomery Ward; Chicago, IL Airtron, H. & H. Radio Co.; Newark, NJ Alltron (tube brand), Allan Manufacturing Co.; Arlington and Harrison, NJ Amplitron = Tube brand Apollo Radio Tube Company; New York City, NY, Irvington, NJ Argon (Tube brand) Arrow Tube Company; Springfield, MA Atlantic and Pacific Radio Corporation; New York City, NY Bear Radio Products Corp.; New Jersey Belltone = Tube brand Blackstone Radio Tube; Pawtucket, RI Buck (tube brand) CeCo (tubes), C.E. Mfg. Co. Inc.; Providence, RI Champion Radio Works; Danvers, Massachusetts Claradyne; (Where ?) Continental Corp. (Continental tube brand); Chicago, IL Daven Radio Co. ; Newark (NJ) Diatron (tubes), Diamond Vacuum Products Co; Chicago, IL D-Lux Blue (tube brand) Echotron (tubes); (where ?) Federal Electric and Radio Co.; New York City, NY Fields, Henry; Shenandoah, IA Gloria Tube Works; Newark, NJ Gold Bond (tube brand) Gold-Tone Radio Company; New York City, NY Green Seal (tubes), Air-Way Electric Appliance Corp.; Toledo, OH Greentron (tubes) Hickory (tube brand); (Where ?) Hylon (tubes), brand Hytron; Salem (MA) KMA, May Seed and Nursery Co.; Shenandoah, IA Knight (tubes), brand Kwik-lite (Kwiklite), Usona Manufacturing Co.; Toledo, OH Lafayette Radio & TV Corp; New York (NY) Legion (Tube brand); (Where ?) Loraco (tubes), George Loring; Chicago Magnatron, Connewey; Hoboken N.J. Music Master Corp. (pre 1927); Philadelphia Myers, E.B. Ltd.; Cleveland (Myers4) Neontron Co.; New York City, NY Neptune Tube Works; Newark, NJ Panama (tubes) Peak (tubes) Pioneer Engineering Laboratories; Jersey City, NJ Powertone (brand): Barfield Electrical Laboratories, New York NY Premier Vacuum Tube Co.; Chicago, IL QRS Music Company; Chicago, IL Radio Knight, Chisholm-Barfield Corp; New York City, NY Real Tone Tube Co.; Pawtucket, RI Rextron Radio Corporation (tube brand); Chicago Royal Tube Co.; Pawtucket, RI Seaver-Williams Co.; Boston, MA Silvertone (tubes) - see also Sears; Chicago, IL Sky Sweeper, Charles R. Ablett Co.; New York, NY Songbird (brand) Sovereign Electric & Mfg. Co.; Chicago Sparton-Cardon Tubes; Jackson MI Speed (Cable Radio Tube) Star Radio Tube Co.; Chicago, IL Supertron Manufacturing Co. Inc.; Hoboken, NJ The Talker (tube brand) Van Horne Tube Company; Franklin, OH (see also Musselman) Vogue Nonpareil (tube brand), Allan Manufacturing Co.; Arlington and Harrison, NJ Volutron (tube brand) Walco, Star Engineering Co; Arlington, NJ WRC, Conway Electrical Laboratories; New York City, NY
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Universal 
Identical to 201A = 01A = UX201A = CX301A = ER201A = 201 = RH201A = LS201A = FX201A = CX201A = GSX401A = 4600 = MX201A = JX201A = 3000X1-A = VX201A = HF201A_perfectron = SW201A = LB-201A = P201A = SX01A = SLX201A = D201A = NX-201A = ZP201A = BG-201A = RayX-201A = T-201A = TS201A = D-201A = EX201A = Z201A = A_MusicMaster
Similar Tubes
Other shape (e.g. bulb type):
  DX-235 ; M-201A ; RedTop_UX
Normally replaceable-slightly different:
  201A_Magnavox ; 38001 ; A57
Heater different:
  01B
Differences not known by us:
  RX201A
First year Aug.1925 Saga of the Vacuum Tube, Tyne page 315.
Predecessor Tubes UV201A  

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.25 Ampere / Direct / Battery =
Description

201A is a short name for the UX201A, which was replacing the UV201A in August 1925 (Tyne page 315).

Do not confuse with the 201A by Western Electric, which is completely different!

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 47 g / 1.66 oz
Tube prices 10 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
van_horne_201a_fs.jpg
201A: Fin Stewart collection
Fin Stewart

 
201a_sock.png
201A: O.F.
Otto Frosinn

 
tc-201-atelevocal.png
201A: Vintage Electronic catalog
Geri Meier


from Just Qvigstad

Usage in Models 4= 1925?? ; 6= 1925 ; 1= 1926?? ; 4= 1926? ; 7= 1926 ; 3= 1927? ; 11= 1927 ; 4= 1928?? ; 3= 1928? ; 11= 1928 ; 9= 1929? ; 10= 1929 ; 1= 1930? ; 8= 1930 ; 1= 1931?? ; 1= 1931

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):84



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg