• Country
• United States of America (USA)

• Manufacturer / Brand
• Midwest Radio Co., The, (Miraco); Cincinnati, OH

• Year
• 1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 47128

• • Brand: Miraco

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

• Number of Tubes
• 17

• Valves / Tubes
• 6K7 6A8 6J5 6J7 6AF6 6K7 6K7 6P5 6H6 6P5 6P5 6P5 6P5 6AC5G 6AC5G 80 80

• Main principle
• Superhet with RF-stage; ZF/IF 456 kHz

• Tuned circuits
• 8 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and more than two Short Wave bands.

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

• Loudspeaker
• 2 Loudspeakers

• from Radiomuseum.org
• Model: Chassis 170 - Midwest Radio Co., The, Miraco

• Notes

• The Midwest Chassis 170 features automatic frequency control (AFC) enabled by a switch labeled Motor, a 6AF6 tuning eye, motorized tuning with 6 station presets, 4 tone controls labeled Bass, Treble, Alto, and Soprano that can be switched on/off independently for a total of 16 different tone settings, and an auxiliary input with a switch labeled Television.

  It receives 5 bands: A = 550-1500 KHz, B = 1.5-4.2 MHz, C = 4.2-12 MHz, D = 12-30 MHz, E = 125-350 KHz.  It drives two speakers, an 11.5" electrodynamic woofer and a 3.5" permanent magnet tweeter.

  Riders lists it as "Model 170"

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 11 = ca. 1940 and before

• Other Models

• Here you find 317 models, 182 with images and 214 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Midwest Radio Co., The, (Miraco); Cincinnati, OH