• Country
• United States of America (USA)

• Manufacturer / Brand
• Acme Apparatus Co.; Cambridge (MA)

• Year
• 1925/1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 31156

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

• Number of Tubes
• 5

• Valves / Tubes
• unknown_Tube

• Main principle
• TRF without regeneration; Reflex

• Wave bands
• Broadcast only (MW).

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Acmeflex 5-Tube Reflex Kit Model S-2 - Acme Apparatus Co.; Cambridge

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 24 x 7 x 7 inch / 610 x 178 x 178 mm

• Notes
• Built in loop antenna. Can be supplied by "B-Eliminator".

• Net weight (2.2 lb = 1 kg)
• 25 lb (25 lb 0 oz) / 11.350 kg

• Price in first year of sale
• 75.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Literature/Schematics (1)
• November 1925, Electrical Record Supplement page 28

• Other Models

• Here you find 21 models, 20 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Acme Apparatus Co.; Cambridge (MA)