Antique radios, Old Time Radios

ACH1

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

Tube ID = 165


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Identical to	ACH1 = TH401 = 4M2 = WE40 = TACH1_7pin = WE22
Similar Tubes	Heater different: BCH1 Other base: 41STH; 4M2_p8; ACH1C; ACH1_B7; ACH1_Tungsram; TACH1 Other base and other base diagram: CCH1
First Series	Feb.1934 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Jul.1934 : Funk, Die Zeitschrift des Funkwesens 1934 #31
Predecessor Tubes	RENS1224
Successor Tubes	1938 ECH11 ECH3 ACH1C

Base	Europe 7-Pin (C7A, C, 1933) (Codex=Lf) Top contact with a cap
Was used by	Radio/TV-reception etc.
Filament	Vf 4 Volts / If: 1 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Tube prices	3 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49 Entwicklungsfirma = Telefunken


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

JR
Jacob Roschy

Telefunken Werkstattbuch
Wolfgang Bauer

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models (calculation each 25th of the month)	1= 1934? ; 35= 1934 ; 1= 1935?? ; 2= 1935? ; 24= 1935 ; 2= 1936?? ; 4= 1936? ; 41= 1936 ; 1= 1937?? ; 7= 1937? ; 68= 1937 ; 2= 1938?? ; 5= 1938? ; 70= 1938 ; 1= 1939? ; 8= 1939 ; 1= 1940? ; 1= 1940 ; 1= 1941 ; 1= 1946 ; 5= 1947 ; 2= 1948 ; 1= 1949? ; 2= 1949 ; 6= 1950 ; 1= 1951 ; 1= 1952 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 294

Further Information for

ACH1

ACH1 (ACH1) - Aufdruck "S * Bi" (29.06.2006) Gerhard Eisenbarth	Clicks: 648 Replies: 1
Auf einer ACH1 aus meiner Sammlung befindet sich der Aufdruck SBi, siehe Bild. Kann jemand Auskunft darüber geben, welche Bedeutung dieser Aufdruck hat? Das Bi steht für Bifilar und bezieht sich auf den bifilar gewickelten Heizer dieser Röhre. Aber was bedeutet das S im Aufdruck? More ...*

ACH1 (ACH1) - produced with C7A or P8A base (18.01.2006) Robert Sarbell	Clicks: 922 Replies: 6
Tube administrators and members, I have just recently bought some early tubes for the Philips AL161, and find there appears to be the Telefunken ACH1 produced with a C7A base, and also a Telefunken D.R.P. tube with the P8A base - the marking is clearly NOT the ACH1C tube that is shown with the ACH1 technical data. I have seen many interesting posts related to the multitude of tubes - and even some from Herr Wolfgang Bauer which depicts the very interesting, and apparently occasional, non-standard tube types. I realize there were many tubes produced with the P8A base; however, it appears as though most of them were the variant type ACH1C. Respectfully, Robert Sarbell More ...

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