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History of the manufacturer  

Ferris Instrument Co.; Boonton, (NJ)

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Name: Ferris Instrument Co.; Boonton, (NJ)    (USA)  
Abbreviation: ferrisin
Products: Model types
Summary:

Ferris Instrument Co.; Boonton, New Jersey; Known as manufacturer of measurement equipment in the ~1930/40ies.

History:

This manufacturer was suggested by Wolfgang Scheida.


Some models:
Country Year Name 1st Tube Notes
USA  38 Signal Generator 22A 955  Signalgenerator bis ca 30MHz in 6 Stufen mit externer und interner Modulationsmöglichkeit. 
USA  50 Microvolter 18-D   Ferris Microvolter 18-D; RF generator, coverage 8 - 210 MHz in seven ranges, ext. or inter... 
USA  38 Radio Noise and Field Strenght 32   Frequency coverage 150 to 350 kHz and 550 kHz to 20 MHz. Input voltage 1 µV to 100 mV. Bui... 
USA  35 Microvolter 10B 56  This is a RF generator test-bench unit. The unit has a 0 to 10 microvolt vernier control ... 
USA  45 Signal Generator 22-DT 6J5   

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