Antique radios, Old Time Radios

1AJ5

ID = 1059

Country:

United States of America (USA)

Brand:	Raytheon Mfg. Co.; Cambridge, MA
Tube type:	Diode-Pentode Audio Frequency

Identical to

1AJ5

First year

1953 Beitman Radio Diagrams, Vol. 13, 1953 Motorola CH= HS-347

First Source (s)

16.Aug.1954 : Electron Tube Registration List

Base	Subminiatur (wire-ends, flat) B5A
Filament	Vf 1.25 Volts / If 0.04 Ampere / Direct / Battery =
Description	The tube 1AJ5: 16.Aug.1954 : Electron Tube Registration List. But the Beitman Manual of 1953 brings a Motorola-chassis HS-347 with models 53LC (1, 2, 3) and therefore 1953 seems to be correct. Text in other languages (may differ)
Dimensions (WHD) incl. pins / tip	9 x 38 x 6 mm / 0.35 x 1.50 x 0.24 inch
Weight	3 g / 0.11 oz
Tube prices	1 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973


	1AJ5: W.W.Diefenbach Günther Stabe

1AJ5: KS
Keith Staines

1AJ5: W.W.Diefenbach
Günther Stabe

1AJ5: Essential characteristics
Peter Hoddow

Usage in Models

5= 1953 ; 7= 1954? ; 3= 1954 ; 9= 1955? ; 7= 1955 ; 9= 1956? ; 11= 1956 ; 1= 1958?? ; 1= 1958? ; 5= 1958 ; 1= 1959?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):59

Collection of Michael Gnaedig-Fischer (MEX)

Collection of Aldo Patriarca (CH)

Collection of Keith Staines (GB)

Collection of Günther Stabe (D)

Collection of Geri Meier (CH)

Forum contributions about this tube

1AJ5

Threads: 1 | Posts: 2

Hits: 909 Replies: 1

Market introduction date 1953

Mark Hippenstiel
10.Apr.17

Market introduction date 1953

The series consists of:

1AG4 Output Pentode
1AH4 RF Pentode (April 1951)
1AJ5 Diode-Pentode (August 1954)
1V6 Mixer Pentode / Oscillator Triode (April 1951)
1AK4 RF Pentode
1AK5 Diode-Pentode

Namely the 1AJ5, registered in August 1954, was on the market a year earlier already. Raytheon has advertised this series in the January / February 1953 issue of Communication Engineering and in the March 1953 issue of Tele-Tech & Electronic Industries (see attachment, same ad for both publications).

The Tung-Sol Elekctric Inc data sheet for the tube is dated September 1, 1953. First sets appear end of 1953 e.g. with the Motorola HS-347 chassis.

Obviously, the registration for 1AJ5 was late and has to be marked as erroneuos. In my opinion, it cannot be reliably used to determine the year of a model release.

Kind regards,
Mark

Attachments

Raytheon Advert (217 KB)

Wolfgang Gebert
11.Apr.17

Market introduction date 1953

this ad was also published in Electronics, February 1953 p.33

1AJ5
End of forum contributions about this tube

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