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R-110AT Tombstone T=twin speakers

R-110AT Tombstone ; Stewart Warner Corp. (ID = 1670263) Radio R-110AT Tombstone ; Stewart Warner Corp. (ID = 1670264) Radio
R-110AT Tombstone ; Stewart Warner Corp. (ID = 1670265) Radio R-110AT Tombstone ; Stewart Warner Corp. (ID = 1478532) Radio
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R-110AT Tombstone ; Stewart Warner Corp. (ID = 1670263) Radio
Stewart Warner Corp.: R-110AT Tombstone [Radio] ID = 1670263 933x865
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For model R-110AT Tombstone T=twin speakers, Stewart Warner Corp.; Chicago (IL)
Country:  United States of America (USA)
Manufacturer / Brand:  Stewart Warner Corp.; Chicago (IL)
Year: 1933/1934 perfect model Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 10: 58 27 58 58 55 51 27 2A5 2A5 80
Main principle Superhet with RF-stage; ZF/IF 177.5 kHz
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast plus 2 Short Wave bands.
Power type and voltage Alternating Current supply (AC) / 60 cycles, 115 Volt
Loudspeaker 2 Loudspeakers / Ø 5 inch = 12.7 cm
Power out 7 W (undistorted)
from Model: R-110AT Tombstone [T=twin speakers] - Stewart Warner Corp.; Chicago
Material Wooden case
Shape Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
Dimensions (WHD) 16 x 13 x 12.25 inch / 406 x 330 x 311 mm


The Riders manual schematic for this radio refers to it as a model R-110-A.  This number is the chassis number.  Model 1107 is the specific cabinet (case) that uses the R-110-A chassis.

RF-stage, but the second IF (177.5 kc) has only one tuned circuit (resulting in 6 circuits). The tube 27 is the oscillator and the other the phase inverter for push-pull output. Tube 51 is a noise suppressor.

Distinctions: Model 110-A is the normal model for 115 volts, 60 cycles. Model 110-B is for 25 cycle mains, 110-E is for 250 volts, 60 cycles. Additional suffix T identifies twin speaker model (field coils in series, voice coils in parallel) - see for instance this R-110AT Side Table and additional suffix F is with phono. This same chassis was used for console models (chair side) and for tombstone models like this model 1107 or tombstone with 2 loudspeakers R-110AT (see the R-110 chassis model page). Since we don't know which variant was used in which cabinet, we can not create models for which we have no evidence. Please tell us if you find more variants for the R-110 series.



Net weight (2.2 lb = 1 kg) 25 lb (25 lb 0 oz) / 11.350 kg
Circuit diagram reference Rider's Perpetual, Volume 4 = ca. 1934 and before
Mentioned in Table Top Radios Vol. 1 Stein 98 (page 152.)
Literature/Schematics (1) Cathedral & Tombstone Radios (page 256.)

Model page created by Noemi Erb. See "Data change" for further contributors.

All listed radios etc. from Stewart Warner Corp.; Chicago (IL)
Here you find 2066 models, 357 with images and 1925 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.