• Country
• Australia

• Manufacturer / Brand
• Astor (brand), Radio Corporation Pty., Ltd.; Melbourne

• Year
• 1958/1959

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 236306

• • alternative name: Radio Corp.of Australia

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

• Number of Transistors
• 7

• Semiconductors
• 2N486 or. OC44 2N484 or. OC45 2N484 or. OC45 CK872 or. 2N362 or. OC71 or. TS2_STC or. TS3_STC CK872 or. 2N362 or. OC71 or. TS2_STC CK878 or. 2N632 or. 2N185 or. OC72 CK878 or. 2N362 or. 2N185 or. OC72 1N295 1N295

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Transistor Seven HPN - Astor brand, Radio Corporation

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

• Dimensions (WHD)
• 9 x 6.5 x 3 inch / 229 x 165 x 76 mm

• Notes

• This is one the first Transistor Portable in the Astor range, which also includes model APN. It was released in June 1958.

  The circuit is very similar to that used in the GPN with minor component additions around the first AF stage. The GPN also uses a case which is very similar in appearance.

  The dial scale is a pointer on a clear plastic disk with the stations marked on an aluminium panel behind it. One panel covers Victoria, SA, WA and Tasmania. Conversion to cover Queensland and NSW would require the use of a small spanner or pliers.

  The first and second AF transistors may also be CK872's or STC type TS2's whilst the push/pull output pair may also be CK878's.

  • Rola Type 3C loudspeaker.
  • Battery Eveready Type 276P.

  Cabinet case styling colours front and back: Tan/White, Lawn Green/White, Cherry Red/White, Charcoal/White, White/Tan, White/Lawn Green, White/Cherry Red & White/Charcoal.

• Net weight (2.2 lb = 1 kg)
• 1 kg / 2 lb 3.2 oz (2.203 lb)

• Price in first year of sale
• 39.90 AUS £

• Literature/Schematics (1)
• - - Manufacturers Literature (Astor Technical Bulletins HPN-1, 23/6/1958; HPN-2, 2/10/1959; HPN-3, 5/3/1959 & HPN-4, 11/3/1959.)

• Literature/Schematics (2)
• - - Manufacturers Literature (Astor Technical Bulletins HPN-5, 28/4/1959 & HPN-6, 5/10/1959.)

• Literature/Schematics (3)
• J.R. Publications Transistor Radio Service Handbook (Vol. 1, 1960, Page A20.)

• Literature/Schematics (4)
• J.R. Publications Transistor Radio Service Handbook (A Series Handbook, Page A62.)

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

• Other Models

• Here you find 851 models, 466 with images and 359 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Astor (brand), Radio Corporation Pty., Ltd.; Melbourne