• Country
• United States of America (USA)

• Manufacturer / Brand
• Westinghouse El. & Mfg. Co. - see also Canadian W.

• Year
• 1956 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 83481

• • alternative name: Westinghouse El. Int.

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

• Number of Transistors
• 7

• Semiconductors
• 2N252 2N253 2N254 2N94 2N238 2N185 2N185

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.75 inch = 7 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: H-618P7A Ch= V-2278-3 - Westinghouse El. & Mfg. Co. -

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Notes

• The Westinghouse H-618P7A is a battery operated portable 7 transistor AM radio.  The AM frequency tuning range is 540 to 1600kHz.  Has push-pull audio output stage and earphone jack that effectively disconnects the speaker for private listening.  The 880 (2N94) transistor is used as a Class-B demodulator.

  The family of radio's sharing the V-2278 chassis are as follows:

  Model	Chassis	Cabinet Color
  H-587P7	V-2278-1	Gray
  H-587P7A	V-2278-3	Gray
  H-588P7	V-2278-1	Black
  H-588P7A	V-2278-3	Black
  H-589P7	V-2278-1	Red
  H-589P7A	V-2278-3	Red
  H-617P7	V-2278-3	Gray
  H-617P7A	V-2278-3	Gray
  H-618P7	V-2278-3	Black
  H-618P7A	V-2278-3	Black
  H-619P7	V-2278-3	Red
  H-619P7A	V-2278-3	Red

   

• Mentioned in
• Silicon Chip magazine, April 2016. P86

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 17, 1957 (Page 171)

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 362, folder 15 dated 6-57)

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 3132 models, 1748 with images and 2646 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Westinghouse El. & Mfg. Co. - see also Canadian W.