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| Majestic 72 (Rider : Grigsby 1 P: 1.10.5) |
| £1.80 (~ $2.20 or €2.10) |
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| Country | USA |
|---|---|
| Manufacturer | Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL) |
| Model | Majestic 72 Chassis = 70 - 7A [Early] - Grigsby-Grunow -Hinds Co. |
| Year: 1926 | Broadcast Receiver |
| Valves | 8: UX226 UX226 UX226 UY227 UX226 UX171A UX171A UX280 |
| Technology | Special principle (see notes); 3 AF stage(s) |
| Tuned Circuits | 4 AM circuit(s) |
| Wave Bands | Broadcast only (MW). |
| Power Type | AC / 90-130 Volt |
| Initial Price | 210.25 $ |
| Source | Book: Beitman Vol: 1926 Page: 79_86 |
| Source | MyFile: Majestic_Grigsby-60_70_72_70B_80_90_90B_100_100B_130A_Super Screen Grid_180_181_230A_Majestic_7BP3_7BP6_7P3_7P6_8P3_8P6_9P3-1930.Gernsback.Radio.pdf |
| Source | Book: Rider Vol: 1 Page: 1&10&5 |
| Source | Book: Rider Vol: 2 Page: 1 |
| Source | MyFile: Majestic_Grigsby-20_21_22_23_30_31_50_52_60_61_62_70_71_72_70B_80_90_90B_100_100B_130A_160_163_Super Screen Grid_180_181_230A_Majestic_7BP3_7BP6_7P3_7P6_8P3_8P6_9P3-1933.Rider.Radio.pdf |
| Source | Book: SM Vol: 153 Page: 8 |