• Country
• Switzerland

• Manufacturer / Brand
• Maxim; Aarau

• Year
• 1924/1925

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 12265

• Tuned circuits
• 1 AM circuit(s)

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Sperrkreis P505 - Maxim; Aarau

• Notes
• "Filterkreis"

• Price in first year of sale
• 67.00 SFr

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 41 models, 33 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Maxim; Aarau