• Country
• United States of America (USA)

• Manufacturer / Brand
• Gemtronics (Brand)

• Year
• 1979 ?

• Category
• Citizen Band Equipment

• Radiomuseum.org ID
• 289277

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

• Number of Tubes
• 9

• Valves / Tubes
• 6BL8 6BL8 6BA6 6BA6 12AX7 6BQ5 6GH8 6BA6 6BQ5

• Number of Transistors
• 8

• Semiconductors
• 2SB471 2SC1096 2SC381 unknown_IC

• Main principle
• PLL, Phase-locked loop

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 220 / 12 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch

• Power out
• 0.5 W (undistorted)

• Material
• Metal case

• from Radiomuseum.org
• Model: 40 Channel CB Transceiver GTX-5000 - Gemtronics Brand

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 300 x 210 x 125 mm / 11.8 x 8.3 x 4.9 inch

• Notes

• Citizens  Band  40 CH  Tube Transceiver PLL Controlled.
  
  This is a unique example of a Tube-Drive Radio made in the mid to early 1970's with Phase-Locked-Loop Technology.  It is used for a 40 channel CB  in the frequency range of 26.965 to 27.405 MHz. The circuitry is common for many Tube CB transceivers made in this era (like a Japanese Tenko), but user friendly and with extreme stability.

  Also 13 Diodes. Tubes and Transistors listed one per type. The unknown IC is an MSM5907, PLL Frequency Synthesizer.
  
  Made in Japan - USA project.

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Mentioned in
• -- Original-techn. papers.

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Mauro Grando. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 2 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gemtronics (Brand)