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History of the manufacturer  

Takeda Riken Industry Co., Ltd.; Tokyo

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Name: Takeda Riken Industry Co., Ltd.; Tokyo    (J)  
Abbreviation: takeda
Products: Model types

Takeda Riken Industry Co., Ltd., St. Luke's Tower 31F, MS33, 8-1 Akashi-cho, Chuo-ku, Tokyo, 104-6591, Japan.
Mainly measurement equipment.

Founded: 1954
Gegründet 1954 von Ikuo Riken. 1982 Beginn der internationalen Expansion. Zunächst in USA unter Advantest America, Inc. In Deutschland seit 1992 von R&S vertreten (Quelle:

This manufacturer was suggested by Otto Frosinn.

Some models:
Country Year Name 1st Tube Notes
79 Spectrum Analyzer TR4132N   Frequency Range: 100 kHz to 1000 MHzCenter Frequency Display: Units of 1 MHz, digital disp... 
75 Digipet 60   Frequenzzähler bis ca. 35 MHz mit Nixieröhren. Umschaltbare Eingangsempfindlichkeit 0,05, ...