• Year
  • 1946–1952 ?
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 44059

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

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 3 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: HQ-129-X [early] - Hammarlund Mfg. Co. Inc.; New
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 495 x 270 x 315 mm / 19.5 x 10.6 x 12.4 inch
  • Notes
  • The Hammarlund HQ-129-X (early) Communications Receiver has the following features:

    • Covers 540 kHZ - 31 MHz in six bands:
      • 540 - 1320 kHz
      • 1.32 - 3.2 MHz
      • 3.2 - 5.7 MHz
      • 5.7 - 10 MHz
      • 10 - 18 MHz
      • 18 - 31 MHz
    • Bandspread in 80, 40, 20, and 10 amateur bands.
    • AM, CW(BFO).
    • Headphones jack.
    • Optional matching PSC-10 speaker.
    • Optional FS-135-C Frequency Standard (Crystal Calibrator) may be added by modifying the chassis.

    The HQ-129-X (early) model does not have bandspread on the 15 meter band (21 MHz) and is identified with white lettering of the Hammarlund badge & HQ-129-X model number; bandspread logging scale is 0 to 200.

    The HQ-129-X (late) model does have bandspread on the 15 meter band (21 MHz) and is identified with red lettering of the Hammarlund badge & HQ-129-X model number; bandspread logging scale is 0 to 100.

    Price at introduction was $129 (early model) (intended to reflect the model number), but price increased the following year and sold for $239 (late model) by the end of production in 1953.

  • Net weight (2.2 lb = 1 kg)
  • 23.1 kg / 50 lb 14.1 oz (50.881 lb)
  • Price in first year of sale
  • 129.00 USD
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 15 = 1947 and before
  • Literature/Schematics (1)
  • 1951 Newark catalog Nº 51
  • Literature/Schematics (3)
  • The Communications Receiver-The 1945 Hammarlund HQ-129X, AWA, article by Bill Fizette
  • Literature/Schematics (4)
  • Instruction Manual Hammarlund HQ-129-X Amateur Communications Receiver, undated

 Collections | Museums | Literature

Collections

The model is part of the collections of the following members.

 Forum

Forum contributions about this model: Hammarlund Mfg. Co.: HQ-129-X

Threads: 1 | Posts: 2

my 129  is running too much b+ ....340 at pin 8 5u4 versus 300 ....this causes vr tube to overwork by 50%....60 ma vs 40max

....the radio is freshly recapped and appears to be working well... i am thinking of placing a suitable resistor between 5u4 pin 8 and the choke....any ideas???...john

John Morris, 28.Jun.18

Weitere Posts (2) zu diesem Thema.