radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

608R

Information - Help 
ID = 38963
       
Country:
United States of America (USA)
Brand: Marathon (tubes), Northern Manufacturing Co.; Newark, NJ
Developer: Marathon (tubes), Northern Manufacturing Co.; Newark, NJ 
Tube type:  Triode, vacuum   Power/Output 
Identical to 608R
First year 1927 Saga of the Vacuum Tube, Tyne p.345

Base UX-Base (4 Pins (2 thick, USA 1924, UX) 2 Sidecontacts.
Was used by Radio/TV-reception etc.
Filament Vf 5.5 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description

Early AC tubes for conversion of battery radios. The filament was connected to side terminals on the tube base. This tube was used as an amplifier.

Usually sold with a Marathon AC kit, consisting of a cable with the necessary clips to connect the heaters.

 
Dimensions (WHD)
incl. pins / tip
x 119 x 45 mm / x 4.69 x 1.77 inch
Weight 57 g / 2.01 oz
Information source Saga of the Vacuum Tube, Tyne   p.346
-- Collector info (Sammler)   

608_marathon_base~~2.png 608R: own collection
Peter den Boer


Just Qvigstad

Collection of

 
usa_marathon_ac608r.jpg

608R
 

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]
  

Data Compliance More Information