MIDWEST MODEL AND CHASSIS IDENTIFICATION
AND SERVICE INFORMATION
** THIS PAGE IS UNDER
CONSTRUCTION **
Last update: May 2, 2023
Determining a Midwest model number is often difficult as identification rarely appears on the chassis or cabinet.
In most years prior to 1947, Midwest did not use unique model numbers. Instead they used a simple catalog order number consisting of the cabinet style and chassis tube count. Often a given cabinet could be ordered with a choice of chassies. For instance, cabinet style B could be had with a 16 tube or 11 tube chassis. The order number would have been B-16 or B-11.
Adding to the confusion for us now, the cabinet designation was sometimes used more than one year so a number G-11 for instance could be two different sets with different chassies from two different years.When looking for service information the chassis model number is used most often. Chassis model numbers may be simply the number of tubes such as 16 or a combination of the number of tubes and the model year. For example: a 9 tube chassis made in 1938 would be chassis 9-38; a 16 tube chassis from 1935 would be 16-35.
Starting with 1940 the chassis number was in the form of the tube count and the last digit of the year. For example: the 9 tube chassis in 1940 would be 90; the 16 tube chassis in 1949 would be 916.Here I have shown some of the more common dial faces with their associated chassis model numbers. The chassis numbers are often found in the Riders Service manuals. In many cases I have re-drawn the schematics for legibility and corrections.
You can also access my service information by clicking on the chassis number, a new page or PDF will open.
 9-34 10-34 16-34 |
 16-35 |
 7-36 Early 7-36 Late |
 7-36 AC-DC |
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 11-36 |
 18-36 |
 7-37 AC-DC |
7-37 |
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 11-37 |
 16-37 18-37 |
 16-37 with AFC 18-37 with AFC |
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 8-38 (has tuning eye) |
 9-38 |
 10-38 (has tuning eye) |
 12-38 |
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 16-38 18-38 20-38 |
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