radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

485_Sparton

Information - Help 
ID = 57218
       
Country:
United States of America (USA)
Brand: Sparton-Cardon Tubes; Jackson MI
Developer: Sparton-Cardon Tubes; Jackson MI 
Tube type:  Triode, vacuum   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to 485_Sparton
Similar Tubes
Normally replaceable-slightly different:
  484 ; C-484 ; C-485
First year 1929 For the Equasonne circuits
Predecessor Tubes C-485   484   C-484   C-484A   C-484_Cardon  

Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 1.25 Ampere / Indirect / Parallel, (AC/DC)
Description

This tube was designed by Sparton-Cardon for the Equasonne circuit in 1928, but is a later replacement for the C-484, C-485 and the 484, all from Sparton-Cardon. See Rider's Sparton page 5-6 from August 1934. There is also a list of the models which used such tubes and can be found on the manufacturer page for Sparks-Withington, USA - and the note: "Sparton types 484-A and 485 should not be replaced by type '27. Difference in characteristics causes overload on both transformer and tube."

 
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 47 g / 1.66 oz
Literature -- Collector info (Sammler)   
Tube Lore (I)   
 
sparton_485_tube_bm.jpg
485_Sparton: Bob Millard collection
Fin Stewart

 
484a~~3.png
485_Sparton: Manufacturer's Literature
Emilio Ciardiello

 
485data~~1.png
485_Sparton: own collection
Peter den Boer


Usage in Models 1= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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