• Country
• Australia

• Manufacturer / Brand
• Electrosound Pty Ltd, Sydney

• Year
• 1948–1951

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 187772

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

• Number of Tubes
• 5

• Valves / Tubes
• 1T4 1R5 1T4 1S5 3S4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 90 & 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 inch = 16.5 cm

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

• from Radiomuseum.org
• Model: Serenader 51BP - Electrosound Pty Ltd, Sydney

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 13.5 x 11.25 x 5 inch / 343 x 286 x 127 mm

• Notes

• MODEL: 51BP.

  Features: 5V, B/C, 6½" speaker; tuned R.F. stage; aerial loop fitted to false back, may be raised to improve reception; on/off switch in volume control; sloped dial protected by lid; spring type carrying handle; uses two 482 or 7482 and one 741 or 3741 batteries; leatherette covered cabinet with metal grille. (PORTABLES ON PARADE)

  Price £27/18/- is for NSW only.

• Net weight (2.2 lb = 1 kg)
• 17 lb 8 oz (17.5 lb) / 7.945 kg

• Price in first year of sale
• 27.90 AUS £

• Circuit diagram reference
• Australian Official Radio Service Manual Vol. VII

• Mentioned in
• Radio Electrical Weekly, Portables Supplement, 29/10/1948.

• Literature/Schematics (1)
• Australian Official Radio Service Manual AORSM (Volume 7, 1949, Page 114.)

• Literature/Schematics (2)
• Mingay's "Radio Diagram & I.F. Index

• Author
• Model page created by Stuart Irwin. See "Data change" for further contributors.

• Other Models

• Here you find 73 models, 18 with images and 28 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Electrosound Pty Ltd, Sydney