• Country
• Japan

• Manufacturer / Brand
• Sharp; Osaka

• Year
• 1946–1950 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 355091

• • alternative name: Hayakawa Electric Co.Ltd.

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

• Number of Tubes
• 4

• Valves / Tubes
• UZ-6D6 UZ-6C6 6Z-P1 KX-12F

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 85; 100 Volt

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

• Power out
• 1 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 4H-20 - Sharp; Osaka

• Shape
• Tablemodel, with any shape - general.

• Notes

• Sharp Model 4H-20,  2-Kreisempfänger mit Rückkopplung.

• Mentioned in
• -- Original-techn. papers.

• Literature/Schematics (1)
• -- Original prospect or advert

• Author
• Model page created by Adrian Riesen. See "Data change" for further contributors.

• Other Models

• Here you find 1338 models, 1209 with images and 517 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sharp; Osaka