• Country
• United States of America (USA)

• Manufacturer / Brand
• Bud Radio Inc.; Cleveland (OH)

• Year
• 1960 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 207005

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

• Number of Tubes
• 2

• Valves / Tubes
• 35W4 50C5

• Main principle
• Transmitter

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case, TUBES VISIBLE

• from Radiomuseum.org
• Model: Frequency Calibrator FCC90B - Bud Radio Inc.; Cleveland OH

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 3 x 4.75 x 4 inch / 76 x 121 x 102 mm

• Notes
• This is an independent device to generate a marker signal every 100 kHz through the radio spectrum. The purpose is to verify and/or calibrate the frequency dial pointer of a radio receiver. The device has a trimmer adjustment to allow it to be zero beat to a known frequency standard (like WWV) which then produces an accurate marker across the dial from the harmonics generated from the 100 kHz crystal. The range of this device starts at 100 kHz through at least 60 MHz with markers every 100 kHz and much stronger markers every 1 MHz. No connection to the receiver is necessary, only a loose coupling of the output wire to the antenna of the radio. The power switch has two positions to place it in a standby state, and an operating state. The circuit is powered directly from the line input using no transformer. The size dimensions include the height of the tubes.

• Net weight (2.2 lb = 1 kg)
• 1 lb 1 oz (1.063 lb) / 0.482 kg

• Author
• Model page created by Walter (Mike) Meek. See "Data change" for further contributors.

• Other Models

• Here you find 15 models, 13 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bud Radio Inc.; Cleveland (OH)