84B Late
Philco, Philadelphia: 84B [Radio] ID = 870279 641x768
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| Year: 1936 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 4: 77 77 42 80 |
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| Main principle | Superheterodyne (common); ZF/IF 460 kHz |
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| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 115 Volt |
| Loudspeaker | Electro Magnetic Dynamic LS (moving-coil with field excitation coil) |
| Power out | |
| from Radiomuseum.org | Model: 84B [Late] - Philco, Philadelphia Stg. Batt |
| Material | Wooden case |
| Shape | Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only). |
| Notes | Model 84B was the third of a series (models 80B, 81B, and 84B) of low cost 4-tube cathedrals that used a regenerative combined IF/detector stage to maximize sensitivity with very few components. The early version (1934) had a round speaker opening with three vertical bars. The middle version (1935) had a lyre-shaped opening with three vertical bars. The late version (1936) had a continuous arch-shape extending upward from the base, and an oval speaker opening with five mostly vertical bars. Model 84B continued onward for one more year as model 37-84B, with two more cabinet styles, and a new tube lineup (but still using a similar circuit). |
| Price in first year of sale | 20.00 $ |
| Source of data | Philco Radio 1928-1942 |
| Circuit diagram reference | Rider's Perpetual, Volume 4 = ca. 1934 and before |
| Mentioned in | Machine Age to Jet Age II (page 212.) |
| Literature/Schematics (1) | Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data |
| Literature/Schematics (2) | Cathedral & Tombstone Radios (page 194.) |
Model page created by Thomas Albrecht. See "Data change" for further contributors.
All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA
Here you find 3746 models, 2126 with images and 3140 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
