• Country
• Austria

• Manufacturer / Brand
• HEA; Wien

• Year
• 1974

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 165890

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

• Number of Transistors
• 18

• Semiconductors
• TBA480 CD4007 TCA440 TBA800

• Main principle
• Superhet with RF-stage; ZF/IF 460/10700 kHz; 2 AF stage(s); none

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 24 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: S24UM - HEA; Wien

• Shape
• Chassis only or for «building in»

• Notes
• Zusätzlich 4 ICs eingebaut: TBA480, CD4007AE, TCA440, TBA800.

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Rudolf Müller. See "Data change" for further contributors.

• Other Models

• Here you find 195 models, 138 with images and 157 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from HEA; Wien