HR-10 Weather-Sentry

Hammarlund Mfg. Co. Inc.; New York, NY

Data
Forum
Pictures
Collections

  • Year
  • 1968–1970
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 193393

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

 Technical Specifications

  • Number of Transistors
  • 17
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 455/10700 kHz
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Line / Batteries (any type) / Ext. Power or 4 x size Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3.5 inch = 8.9 cm
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: HR-10 Weather-Sentry - Hammarlund Mfg. Co. Inc.; New
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 10 x 5.5 x 3.5 inch / 254 x 140 x 89 mm
  • Notes
  • This Hammarlund model HR-10 is receiving Broadcast (AM 535 - 1605 kHz), SW (MB for Marine Band) 1.6 - 4.5 MHz, FM 88 - 108 MHz and the fixed weather channel 162.55 MHz. It comes with a leather carrying case and retractable antenna. It has the Hammarlund logo on radio & leather carrying case and mentiones in the operating manual: "subsidy of Electronic Assistance Corp.". The radio was only made in small quantities - probably in Japan. The Service Manual is dated May 1969. We know that the Hammarlund HR-10 was sold until 1970 - but could also be still sold later.

    Sensitivity is for AM and MB 30 microvolts/m, FM and weather 1 microvolt. Antenna 13/32" dia. x 7-3/32". Ferrit Core and Telescopic rod. Power Output undistorted 600 mW, max. 1 W. Plug for Ext. Power with the Hammarlund model HA-AD1 AC adapter.
  • External source of data
  • Guest Bill Henry, Deland FL, USA and Russ Edmunds near Philadelphia (see technical papers made by him).
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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 Forum

Forum contributions about this model: Hammarlund Mfg. Co.: HR-10 Weather-Sentry

Threads: 1 | Posts: 1

Bill "Frogger" Henry, a guest from Florida, has sent me the pictures and data about this somehow unique model for the brand Hammarlund Mfg. Co., New York City.

He would like to know more about this HR-10 Weather-Sentry radio, which is in a contrast to perhaps all other products from Hammarlund. Unfortunately we don't know the date of manufacturing - or the sales period. We believe that the radio was of high quality like other Hammarlund products - and therefore much too expensive for the ordinary consumer market. The number of such models must be very small if that is the case. But there might be other reasons for the rareness of this model? One could be the sale and closing of the company.

Guests could answer with the contact form by clicking the bottom link "Contact".
Who knows more?

Ernst Erb, 16.Mar.11

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