• Country
• Austria

• Manufacturer / Brand
• Krischker & Nehoda; Wien

• Year
• 1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 9578

• • alternative name: Boss

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

• Number of Tubes
• 4

• Valves / Tubes
• E438 E438 B405 1801

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

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 110-220 Volt

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: Boss 3WL - Krischker & Nehoda; Wien

• Notes
• evtl. E499,E499,506 (nur 3 Rö)

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Lange+Schenk+FS-Röhrenbestückung

• Other Models

• Here you find 59 models, 14 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Krischker & Nehoda; Wien