• Country
• United States of America (USA)

• Manufacturer / Brand
• Conar Instruments; Washington (DC)

• Year
• 1961–1974

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 96594

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

• Number of Tubes
• 2

• Valves / Tubes
• 12AU7 6BE6

• Number of Transistors

• Semiconductors
• Selenium-Rectifier

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Signal Generator 280 - Conar Instruments; Washington

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 9.875 x 7.5 x 6.5 inch / 251 x 191 x 165 mm

• Notes

• The Conar Instruments 280 is an AC operated signal generator.  Was available in both kit and assembled form.  Uses Hartley oscillator circuit with 6 bands covering the frequency range of 170 khz to 60 MHz (for the old FM band).  Harmonic frequency range extended past 120MHz. Built-in 400 Hz sine wave for AM modulation.

  Initial kit cost was $21.50 (280UK), initial assembled and tested version was $31.50 (280WT).

• Net weight (2.2 lb = 1 kg)
• 8 lb (8 lb 0 oz) / 3.632 kg

• Price in first year of sale
• 31.50 USD

• Literature/Schematics (1)
• NRI News, Dec. 1961/Jan. 1962, pg 1-7 new model, pg 22 order form

• Literature/Schematics (2)
• Conar Electronic Kits and Assembled Products, 1966, pg 24-25

• Other Models

• Here you find 18 models, 17 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Conar Instruments; Washington (DC)