• Country
• United States of America (USA)

• Manufacturer / Brand
• Etón Corp, Lextronix Inc (Grundig); Redwood City / Menlo Park / Palo Alto, CA

• Year
• 2001 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 350096

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

• Main principle
• Superhet, double/triple conversion; ZF/IF 55845/450/10700 kHz

• Wave bands
• Broadcast, Long Wave, more than 2 x SW plus FM or UHF.

• Power type and voltage
• Batteries / addl. power jack / AA: 4 x 1.5 / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: AM/FM Stereo/SW Dual Conversion SSB/700MEM E5 - Etón Corp, Lextronix Inc

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 167 x 105 x 27 mm / 6.6 x 4.1 x 1.1 inch

• Notes

• The ETON E5 portable radio features MW, SW with SSB, and FM Stereo, Clock, Sleep timer and Alarm.

  Main features

  • FM: 87.5 - 108 MHz, 87 - 108.1 MHz, 76 - 108 MHz,  selectable
    • Stepping: 100 kHz (keys), 25 kHz (tuning knob)
  • Amplitude Modulation continuous coverage from 150 to 29999 kHz. Sub-bands:
    • LW: 150 - 519 kHz
    • MW: 520 - 1710 kHz (10 kHz steps), 522 - 1710 kHz (9 kHz steps), selectable
    • SW: 1711 - 29999 kHz continuous scan (13 further sub-bands)
      • Stepping: 5 kHz (keys), 1 kHz (tuning knob)
      • SSB (BFO rotary knob)
    • Wide/Narrow filters
  • Manual, Direct entry, and Auto scan tuning (ATS on FM)
  • 700 Memory Presets
  • Alphanumeric four character memory station labeling
  • World time zone clock
  • 3.5mm external antenna jack
  • Local/DX switch
  • 3.5mm Stereo earphone jack
  • 3.5mm Stereo line-out jack
  • DC IN 6V jack for external power adapter (Positive (+) on center pin)
  • Manual activation of built-in charger when using Ni-MH batteries, 

  The ETON E5 was also sold as Grundig model G5. 

  Brief technical details

  The E5/G5 was made in CHINA by DEGEN . DEGEN released a similar model, the DE1103, that shares the same Receiver PCB assembly although with different reference label. While the E5/G5 uses a digital dial display with more comprehensive operation features, the DE1103 uses an analog like dial scale with a small digital frequency display. Another DE1103 version using DSP technology was later released by DEGEN.

  The E5/G5 uses two PCB assemblies.

  The MCU PCB reference "E5C 060208" uses two processors; one unmarked under blob style (U801) managing the rotary encoder/keys and LCD; another HT46R23 8-bit MCU (U802) managing the radio features including memory presets/labels with the help of a ATMEL524 (AT24C512) 512KB EEPROM (U803). A couple of LDO regulators (BR 55 89 (U804) and 7533-1 (U805)), a couple of transistors (2SC1623-L6 NPN (Q801) and S8550-2TY (Q802), and a few diodes do power supply and control functions.

  The Receiver PCB reference "E5A-II" contains the circuits for FM and AM reception. A TA7358 (IC1) FM Front-End passes the 10.7MHz IF signal to the TA2057NG (IC2) for further processing. A LC72137 (IC4) PLL controls the FM IC1 oscillator and AM 1st oscillator. The audio signal from IC2 is passed to a CD1622CB (IC5) audio amplifier driving the built-in 25 Ohm 1 Watt speaker in BTL mode, and the earphones jack in dual channel mode. A LM358 dual opamp drives the audio line-out jack. The SW band uses a dual-conversion circuit; the front-end uses discrete components and one NM-13 hybrid IC (IC6). The SSB/BFO is handled by another unidentified hybrid IC  (IC7).

  Made in China

• Net weight (2.2 lb = 1 kg)
• 0.346 kg / 0 lb 12.2 oz (0.762 lb)

• Author
• Model page created by Jose Mesquita. See "Data change" for further contributors.

• Other Models

• Here you find 18 models, 18 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Etón Corp, Lextronix Inc (Grundig); Redwood City / Menlo Park / Palo Alto, CA