• Country
• New Zealand-Aotearoa

• Manufacturer / Brand
• Stewart Electrical Industries Ltd.; Christchurch

• Year
• 1962 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 349191

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

• Number of Transistors
• 7

• Semiconductors
• OC44 OC45 OC45 OC71 OC71 OC72 OC72

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast only (MW).

• Details
• Changer (Record changer)

• Power type and voltage
• Dry Batteries / 6 & 9 Volt

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

• Power out
• 0.2 W (unknown quality)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Maryland Transistor [6 Volt] - Stewart Electrical Industries

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• 7-transistor battery-powered portable Radiogram.

  • Record Player: BSR UA14 9 V record changer.
  • Batteries: Eveready Type 2504 6V for radio and Eveready Type 739 for record changer.
  • Frequency Range: 535-1600 kHz
  • Speaker: Philips AD3460 elliptical.   

  Circuit also used in the 9-volt Companion, Maryland 9V & Maryland Minor models.

   

• Mentioned in
• -- Original prospect or advert (Press 7 December 1961 Page 12 (Minor Version))

• Author
• Model page created by Brian Stevens. See "Data change" for further contributors.

• Other Models

• Here you find 15 models, 1 with images and 14 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stewart Electrical Industries Ltd.; Christchurch