• Country
• Great Britain (UK)

• Manufacturer / Brand
• Racal Engineering / Instruments / Electronics Ltd., Bracknell

• Year
• 1981 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 170820

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 45 - 450 Hz, 94-265 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Racal-Dana Universal Counter Timer 9902 - Racal Engineering /

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 284 x 110 x 268 mm / 11.2 x 4.3 x 10.6 inch

• Notes

• Model 9902,  6-Digit 30 MHz counter/timer.

  Frequency (manual and auto-ranging), Single and Multiple Period, Single and Multiple Ratio, Single and Double Line Time Interval, Averaging Totalising.
  Six-digit display with an automatic decimal point.
  Channel A 10 Hz to 50 MHz. Channel B 100 Hz to 10 MHz. Data and command information on a 28-way edge connector.

  See also Model 9906. 

• Net weight (2.2 lb = 1 kg)
• 2.7 kg / 5 lb 15.2 oz (5.947 lb)

• Source of data
• - - Data from my own collection

• Mentioned in
• - - Manufacturers Literature (9902 & 9906 Operators Handbook, WOH 8154, Dec 1981.)

• Author
• Model page created by Rafael Chueca. See "Data change" for further contributors.

• Other Models

• Here you find 113 models, 62 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Racal Engineering / Instruments / Electronics Ltd., Bracknell