ECH 21, Tube ECH21; Röhre ECH 21 (ECH21)

Antique radios, Old Time Radios

ECH21

Country:	Netherlands	Brand:	Philips; - Eindhoven; Netherlands
		Developer:	Philips; - Eindhoven; Netherlands
		Tube type:	Triode-Heptode Frequency converter Controlling (mu)

Tube ID = 1867


	previous \| next

Identical to	ECH21 = ECH71 = X143
Similar Tubes	ECH4 (other base) TH1_BBC (can normally be replaced - small diff'ce) ECH4G (other base) ECH34 (other base) CV302 (Multiple differences or of other kind) ECH21_9pin (other base and data slightly different)
First Series	Feb.1941 Tube leaflet collection E.Erb Philips Book (P11-41)
First Source (s)	Jul.1941 : Radio-Mentor # 7 Feb.1941 : Daten und Schaltungen moderner ... Röhren; Philips # 3
Predecessor Tubes	ECH4 ECH3 ECH21_9pin
Successor Tubes	ECH41 ECH42

Base	Loctal-8, B8G (Sylvania, 1938) (Codex=Wf)
Was used by	Radio/TV-reception etc.
Filament	-: Indirect / -: Parallel, (AC/DC) / If: 0.35 Ampere / Vf 6.3 Volts /
Tube prices	1 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

R. Aufils
Raynal Aufils

RTT Schwandt
Günther Stabe

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models

2= 1941? ; 48= 1941 ; 1= 1942?? ; 4= 1942? ; 58= 1942 ; 1= 1943? ; 56= 1943 ; 1= 1944?? ; 5= 1944? ; 71= 1944 ; 2= 1945?? ; 9= 1945? ; 27= 1945 ; 4= 1946? ; 79= 1946 ; 3= 1947?? ; 1= 1947? ; 96= 1947 ; 8= 1948?? ; 9= 1948? ; 112= 1948 ; 1= 1949?? ; 9= 1949? ; 105= 1949 ; 8= 1950?? ; 8= 1950? ; 69= 1950 ; 1= 1951?? ; 7= 1951? ; 31= 1951 ; 2= 1952? ; 18= 1952 ; 2= 1953? ; 9= 1953 ; 1= 1954?? ; 2= 1954? ;

Number of Models with this tube 933

No further Information for

ECH21

This tube or valve page you reach from a search after clicking tab tubes 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 for a certain tube line up. [rmxtube-en]

rmXorg-08

About Radiomuseum.org

05JulX