• Country
• United States of America (USA)

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

• Year
• 1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 47106

• • Brand: Miraco

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

• Number of Tubes
• 14

• Valves / Tubes
• 6K7 6C5 6C5 6K7 6K7 6K7 6H6 6C5 6F6 6F6 6F6 6F6 6F6 5Z3

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

• Tuned circuits
• 9 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
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• from Radiomuseum.org
• Model: Chassis 14-37 - Midwest Radio Co., The, Miraco

• Notes
• 5 SW bands. There are 3 different versions. The main difference is in the output stage:
  The 14-37 (no suffix) uses 4 x 6F6 in push-pull plus a single transformer coupled 6F6 for the driver.
  The 14-37 intermediate has 4 x 45's for the final stage.
  The 14-37Auses 4x 6F6 for final, and a transformerless driver employing two 6C5's (amp and inverter).

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 8 = 1937 and before

• Other Models

• Here you find 317 models, 181 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