Antique radios, Old Time Radios

1S4

ID = 3087

Country:

United States of America (USA)

Brand:	Common type USA tube/semicond.
Tube type:	Vacuum Pentode Power/Output

Identical to

1S4 = DL91

Similar Tubes

Other class quality (otherwise equal):

CV783 ; VT-210

Heater different:

1S4T

First year

1940 Tube leaflet collection E.Erb Analysis by original leaflets

First Source (s)

13.Nov.1939 : Electron Tube Registration List

Base

Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zwo)

Was used by

Radio/TV-reception etc.

Filament

Vf 1.4 Volts / If 0.1 Ampere / Direct / Battery =

Tube prices

4 Tube prices (visible for members only)

Information source

Essential Characteristics, GE 1973
- - Manufacturers Literature RCA Tube Manual RC-14; 1940

1S4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †
1S4: Telefunken Werkstattbuch Wolfgang Bauer More ...	Just Qvigstad	1S4: Sylvania Technical Manual Peter Hoddow More ...

Usage in Models

1= 1940?? ; 2= 1940? ; 14= 1940 ; 6= 1941?? ; 5= 1941? ; 11= 1941 ; 2= 1942?? ; 1= 1942? ; 3= 1942 ; 1= 1945 ; 1= 1946?? ; 1= 1946 ; 1= 1947? ; 5= 1947 ; 2= 1949?? ; 6= 1950?? ; 1= 1951?? ; 1= 1951 ; 1= 1953?? ; 1= 1953? ; 1= 1953 ; 1= 1955 ; 1= 1960?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):69

Collection of

Robert Gillespie (USA)

Niclas Pettersson (S)

Christian Schaufelberger (CH)

David Erali (USA)

1S4

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