• Country
• United States of America (USA)

• Manufacturer / Brand
• Collins Radio Company; Cedar Rapids (IA)

• Year
• 1934–1936

• Category
• Amateur Transmitter (only)

• Radiomuseum.org ID
• 174026

• Number of Tubes
• 16

• Valves / Tubes
• 47 46 46 203A_Power or 211 57 56 56 2A3 2A3 830B 830B 5Z3 5Z3 866 866 45

• Main principle
• Transmitter

• Wave bands
• Short Wave (SW only)

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Transmitter 30FXB - Collins Radio Company; Cedar

• Shape
• Rack

• Dimensions (WHD)
• 20.5 x 60 x 20 inch / 521 x 1524 x 508 mm

• Notes
• Collins 30FXB Transmitter: can be tuned in the range of 1,5 - 15 MHz included 160 - 20 m ham bands, CW (A1), AM (A3) 100 W.
  Tubes used are 47 as oscillator tube, two 46 buffer (can be switched as doubler operation), a 203A or 211 as R-F power amplifier;
  in the 7B speech amplifier, two 830B (alternatively 800 or 830) act as class B modulators;
  in the integrated power supply 405C, a 5Z3 is used as low voltage recifier (400V B+), two 866 mercury rectifiers as high voltage rectifiers for B+ of 1000V (telephony) or 1250V (CW) operation, and a 45 as diode acting as keying rectifier.
  The 30FXB replaced the 150 series transmitters and has been replaced by the 30FXC in 1936.

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 101 models, 79 with images and 35 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)