1924 Crosley 51 Radio

Description

1924 Crosley 51 Radio.  Complete but not tested.  Battery operated radio from the 1920's.  Solid cabinet, original knobs, clean chassis and components.  A nice piece of early radio, Roaring 20's Americana.  info and photos below from the Radio Museum:
Number of Tubes
2
Valves / Tubes
Main principle
TRF with regeneration
Wave bands
Broadcast only (MW).
Power type and voltage
Storage and/or dry batteries
Loudspeaker
- This model requires external speaker(s).
Material
Wooden case
from Radiomuseum
Model:
regular 51 [.]
- Crosley Radio Corp.;
Shape
Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD)
11 x 6.125 x 5.5 inch / 279 x 156 x 140 mm
Notes
later model (July 1924, early model was Feb.1924). One dial (primary tuning control knob) Later model (July 1924, early model was Feb.1924).
Operating instructions (see tech.info) show a choice of completely different tube configurations:
2 x UV201A needs a 6 v storage "A" Battery
2 x WD12 uses 1.5 v dry "A" Battery
2 x UV199 requires 3 x 1.5 v (= 4.5 v) dry batteries plus socket adaptors.
Same is valid for the Cunningham equivalents.
Later models could also use the following combinations:
2 x UX199;
2 x UX201A;
and for increased output power:
UX201A and UX112A
UX201A and UX171A;
UX199 and UX120;
Later models have a terminal to connect a "C" bias battery in case of operation with an output tube of increased power: UX112A (max0.2 Watt); UX171A (max.0.7 Watt); UX120 (max.0.11 Watt).
Net weight (2.2 lb = 1 kg)
4 lb 8 oz (4.5 lb) / 2.043 kg
Price in first year of sale
18.00 $
External source of data
Ernst Erb
Source of data
Radio Collector`s Guide 1921-1932
Mentioned in
Collector's Guide to Antique Radios 4. Edition
Literature/Schematics (1)
Radio Manufacturers of the 1920s, Vol 1
Literature/Schematics (2)
Le Guide du Collectionneur TSF Biraud/Foster, Vol. I
(page 135)
Other Models
Here you find 1702 models, 1019 with images and 1180 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.