ECH 41, Tube ECH41; Röhre ECH 41 (ECH41)

Antique radios, Old Time Radios

ECH41

Country:	Europe		Brand:	Common type Europe
			Tube type:	Triode-Hexode Frequency converter Controlling (mu)

Tube ID = 2494


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Identical to	ECH41 = CF61
Similar Tubes	Other characteristic (electr. data): ECH42
First Series	1947 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Dec.1947 : Funk-Technik (FT) # 24 Mar.1947 : Daten und Schaltungen moderner ... Röhren; Philips # 3a
Predecessor Tubes	ECH21 ECH4
Successor Tubes	1948 ECH42

Base	Rimlock base B8A (Codex=W)
Was used by	Radio/TV-reception etc.
Filament	Vf 6.3 Volts / If: 0.22 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Description	Osz.-/Mischröhre bis 30MHz, Osz.Spannung zw. 7 und 10 Veff, Schirmgitter-Spannungsteiler kann gleichzeitig auch für das Schirmgitter der EAF42 oder EF41 verwendet werden, Text in other languages (may differ)
Dimensions (WHD)	22 x 66 x 22 mm / 0.87 x 2.60 x 0.87 inch
Tube prices	0 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

JR
Jacob Roschy

RTT Schwandt
Günther Stabe

SEL Handbuch 1964
Peter Hoddow

Usage in Models (calculation each 25th of the month)	3= 1947?? ; 3= 1947 ; 2= 1948?? ; 5= 1948 ; 3= 1949?? ; 38= 1949 ; 24= 1950?? ; 5= 1950? ; 25= 1950 ; 3= 1951?? ; 5= 1951? ; 26= 1951 ; 2= 1952? ; 8= 1952 ; 3= 1953?? ; 2= 1953? ; 1= 1953 ; 1= 1954?? ; 1= 1955? ; 2= 1956? ; 2= 1958?? ; 3= 1958 ; 1= 1960?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 168

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ECH41

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