| Sparks-Withington Co. | |||
| Model: 727X | Chassis: | Year: Pre October 1937 | |
| Power: | Circuit: | IF: | |
| Tubes: | |||
| Bands: | |||
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| Riders Volume 8 - SPARTON 8-12 | |||
| Riders Volume 8 - SPARTON 8-14 | |||
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