Majestic 7P3 (Rider : Grigsby 1 P: 2) |
£1.80 (~ $2.20 or €2.10) |
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Country | USA |
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Manufacturer | Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL) |
Model | Majestic Power Pack 7P3 - Grigsby-Grunow -Hinds Co. |
Year: 1928-1929 | Category: Power supply/conditioner or battery or chargerĀ |
Valves | 1: 80 |
Wave Bands | - without |
Power type | AC / 90-130 Volt |
Source | Book: beitman Vol: 1926 Page: 79 |
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: 2 |
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: gernsback Vol: 1 Page: 194&341(v3) |