Please click your language flag. Bitte Sprachflagge klicken.

Challenger 3 Prest-O-Matic (Prestomatic)

Challenger 3 Prest-O-Matic ; Grebe, A.H. & Co.; (ID = 1656696) Radio Challenger 3 Prest-O-Matic ; Grebe, A.H. & Co.; (ID = 1656697) Radio
Challenger 3 Prest-O-Matic ; Grebe, A.H. & Co.; (ID = 1544142) Radio
Use red slider bar for more.
Challenger 3 Prest-O-Matic ; Grebe, A.H. & Co.; (ID = 1656696) Radio
Grebe, A.H. & Co.;: Challenger 3 Prest-O-Matic [Radio] ID = 1656696 933x787
Select picture or schematic to display from thumbnails on the right and click for download.
For model Challenger 3 Prest-O-Matic (Prestomatic), Grebe, A.H. & Co.; Richmond Hill (NY):
Scanned from the Grebe Folder for 1937/38 "Prest-O-Matic".
Country:  United States of America (USA)
Manufacturer / Brand:  Grebe, A.H. & Co.; Richmond Hill (NY)
Year: 1937/1938 perfect model Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6:
Main principle Super-Heterodyne (Super in general)
Wave bands Broadcast only (MW).
Power type and voltage AC/DC-set / 110 Volt
Loudspeaker Permanent or electro-dynamic (moving coil), system not known yet.
Power out 2 W (max.)
from Model: Challenger 3 Prest-O-Matic - Grebe, A.H. & Co.; Richmond
Material Moulded (Bakelite or Plastics)
Shape Tablemodel with Push Buttons.
Dimensions (WHD) 10.5 x 7 x 5.75 inch / 267 x 178 x 146 mm

Bakelite (color: black or brown) or Plaskon (color: ivory, red or green). The models Challenger 3 and 3 C have a full vision, illuminated Clock-type Dial, as well as Prest-O-Matic (Prestomatic) instantaneous tuning, calibrated in Kilocycles and meters, Tuning Range 173 to 555 meters. Has a wave trap.

For the date see the 3 models, 782-1, 762-L and 782-T in an ad of "Radio Today, November 1937, page 66 and a folder with the same models and more:
Challenger 3, Challenger 3C, 762L, Challenger 5, Challenger 5 L.W., 782L, 782-1, 782T, Challenger 1, Challenger 2 plus the phonograph combination models 782-P8 with Prest-O-Matic instantaneous tuning, 307-P8, 803-P8 and the following models which can be installed with the long wave band for 835-2050 metres: 309-P8, 903-P8, 3012-P8 and 1203-P8.

See also the corresponding Garod models with the same cabinets and chassis, like Challenger I, Challenger III782-1 etc. Examples: the schematic for 1203 Series is the same for Garod 1203T, 1203L, 1203-3, 1203-P6, 1203-P7, 1204ET, 1204E1 (1204EL), 1204-3, 1204E-P6 and 1204E-P7.

Source of data Machine Age to Jet Age II
Mentioned in Plastic Radios - The Antique Radio Collectors' Source Book
Literature/Schematics (3) The Grebe Folder for 1937/38 "Prest-O-Matic".

Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.

All listed radios etc. from Grebe, A.H. & Co.; Richmond Hill (NY)
Here you find 186 models, 115 with images and 59 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.