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

RK20

Information - Help 
ID = 11616
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Transmitting Tube, Pentode, air cooled   Power/Output 
Identical to RK20 = VT137_GPO
Similar Tubes
Normally replaceable-slightly different:
  CV704 ; RK20A
Different maximum ratings:
  804
Base UY-Base, 5 Pins (USA, April 1927) (Codex=Hr)
Was used by Transmittertube (Radio)
Filament Vf 7.5 Volts / If 3 Ampere / Direct
Description

40 W plate dissipation; 30 MHz full ratings, up to 60 MHz with reduced ratings. Thoriated tungsten filament.

 
Dimensions (WHD)
incl. pins / tip		 x 197 x 52 mm / x 7.76 x 2.05 inch
Information source Tube Lore (II)   p. 219
- - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49
rk20_umg.png
RK20: OZ Tidskrift for Kortbolge-Radio (Okt. 1934)
Georg Richter     More ...
rk20_so.png RK20: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad 		rk20_kennl.png
RK20: OZ Tidskrift for Kortbolge-Radio (1934)
Georg Richter
More ...
Usage in Models 1= 1934 ; 1= 1935 ; 1= 1936 ; 2= 1937
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of

Emilio Ciardiello (I)
 
rk20_a.jpg

RK20
 
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