• Country
• United States of America (USA)

• Manufacturer / Brand
• Tektronix; Portland, OR

• Year
• 1972–1993

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 161220

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• none

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Digital Counter DC503 - Tektronix; Portland, OR

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 67 x 125 x 304 mm / 2.6 x 4.9 x 12 inch

• Notes
• TM500 Test and Measurement Plug In System
  All features of DC501 plus:
  2 Channels, separate inputs, attenuators, coupling and trigger level controls.
  Ratio A/B Measures: The ratio of channel A signal to channel B signal averaged over N cycles of B
  Period B: Measures the period of the channel B signal, averaged over N cycles of B
  Time A/B: Measures the time between channel A trigger (start) and channel B trigger (stop)
  Time Manual: Measures the time between start/stop commands from the front panel.

• Net weight (2.2 lb = 1 kg)
• 0.870 kg / 1 lb 14.7 oz (1.916 lb)

• Price in first year of sale
• 695.00 $

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Pius Steiner. See "Data change" for further contributors.

• Other Models

• Here you find 386 models, 374 with images and 92 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tektronix; Portland, OR