285-P or 285-PR

Sentinel Radio Corp., Evanston, Illinois

Data

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Country
United States of America (USA)

Manufacturer / Brand
Sentinel Radio Corp., Evanston, Illinois

Year
1946–1948

Category
Broadcast Receiver - or past WW2 Tuner

Radiomuseum.org ID
57550

Picture
Schematics

285-P or 285-PR ; Sentinel Radio Corp. (ID = 296969) Radio — Sentinel Radio Corp. 285-P or 285-PR (3)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 296970) Radio — Sentinel Radio Corp. 285-P or 285-PR (3)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 296971) Radio — Sentinel Radio Corp. 285-P or 285-PR (3)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 508182) Radio — Sentinel Radio Corp. 285-P or 285-PR (3)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 508183) Radio — Sentinel Radio Corp. 285-P or 285-PR (3)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 508184) Radio — Sentinel Radio Corp. 285-P or 285-PR (3)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 508187) Radio — Sentinel Radio Corp. 285-P or 285-PR (3)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 191758) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
eBay seller: tnorthup (USA). #6612637318

285-P or 285-PR ; Sentinel Radio Corp. (ID = 191759) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
eBay seller: tnorthup (USA). #6612637318

285-P or 285-PR ; Sentinel Radio Corp. (ID = 621692) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 621693) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1175828) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1352056) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1352057) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1705963) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1816382) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
Picture courtesy of guest Anna Samuelian.

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1816383) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
Picture courtesy of guest Anna Samuelian.

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1816384) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
Picture courtesy of guest Anna Samuelian.

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1816385) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
Picture courtesy of guest Anna Samuelian.

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1816386) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
Picture courtesy of guest Anna Samuelian.

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1816387) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
Picture courtesy of guest Anna Samuelian.

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1816389) Radio — Sentinel Radio Corp. 285-P or 285-PR (2)
Picture courtesy of guest Anna Samuelian.

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953125) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953126) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953127) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953128) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953129) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953130) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953131) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

285-P or 285-PR ; Sentinel Radio Corp. (ID = 1953132) Radio — Sentinel Radio Corp. 285-P or 285-PR (1)

Click on the schematic thumbnail to request the schematic as a free document.

Technical Specifications

Number of Tubes
6

Valves / Tubes
1N5GT 1A5GT 1N5GT 1H5GT 3Q5GT 117Z6GT

Main principle
Superhet with RF-stage; ZF/IF 455 kHz

Tuned circuits
6 AM circuit(s)

Wave bands
Broadcast only (MW).

Power type and voltage
Line / Batteries (any type) / 115 ; 90 & 9 Volt

Loudspeaker
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

Material
Leather / canvas / plastic - over other material

from Radiomuseum.org
Model: 285-P or 285-PR - Sentinel Radio Corp., Evanston

Shape
Portable set > 8 inch (also usable without mains)

Dimensions (WHD)
320 x 260 x 160 mm / 12.6 x 10.2 x 6.3 inch

Notes
Line supply= AC or DC +B= 2x45Vbat (90V) A= 2x4.5Vbat (9V) Built in loop antenna.

A Sentinel Folder for season 1947/48 shows the following models together: 285, 286, 289, 296, 298, 302, 305, 309, 313, 314, 315 and 316 in different colors, for instance suffix "I" for Ivory and "W" for Walnut.

Net weight (2.2 lb = 1 kg)
8 lb 0 oz (8 lb) / 3.632 kg

External source of data
Ernst Erb

Source of data
The Radio Collector's Directory and Price Guide 1921 - 1965

Circuit diagram reference
Rider's Perpetual, Volume 16 = ca. 1948 and before

Mentioned in
Collector's Guide to Antique Radios 4. Edition

Literature/Schematics (1)
Photofact Folder, Howard W. SAMS (Set 6 folder 466-27 date 10-46)

Literature/Schematics (2)
Radio Retailing (Radio & Television R.) (February 1947 page 35.)

Literature/Schematics (3)
Shown for Season 1947/48 in a Sentinel Folder.

Other Models
Here you find 705 models, 349 with images and 596 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Sentinel Radio Corp., Evanston, Illinois

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Collections

The model 285-P or 285-PR is part of the collections of the following members.

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