• Country
• United States of America (USA)

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

• Year
• 1922

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 192429

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

• Number of Tubes
• 2

• Valves / Tubes
• UV201 UV201

• Main principle
• Audio-Amplification; 2 AF stage(s)

• Wave bands
• - without

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Two-Stage Audio Amplifier DY-10 - Acme Apparatus Co.; Cambridge

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

• Dimensions (WHD)
• 9.75 x 10.5 x 9.125 inch / 248 x 267 x 232 mm

• Notes
• ACME Two-Stage Amplifier Sockets mounted on bakelite base: positive spring connections. Filament controlled by durable, positive acting rheostats. Acme Audio Frequency Transformers are used. Ample space inside the cabinet for the "B" battery. All connections are from the rear. Eight binding posts mounted on bakelite strip provide connections for input, "A" and "B" batteries and output. Rheostat controlled by genuine bakelite knobs with corrugated edges for secure finger grip. Amplifier jacks are filament controlled to insure maximum economy in the use of the "A" battery current, as current is only applied when plug is inserted in jack.

• Net weight (2.2 lb = 1 kg)
• 8 lb (8 lb 0 oz) / 3.632 kg

• Price in first year of sale
• 32.00 $

• Literature/Schematics (1)
• 1922 Montgomery Ward Radio Catalog page 8

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• 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)