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RORH

RORH ; Grebe, A.H. & Co.; (ID = 232560) mod-pre26
RORH ; Grebe, A.H. & Co.; (ID = 822161) mod-pre26 RORH ; Grebe, A.H. & Co.; (ID = 822162) mod-pre26
RORH ; Grebe, A.H. & Co.; (ID = 822163) mod-pre26 RORH ; Grebe, A.H. & Co.; (ID = 822164) mod-pre26
RORH ; Grebe, A.H. & Co.; (ID = 822165) mod-pre26 RORH ; Grebe, A.H. & Co.; (ID = 822166) mod-pre26
RORH ; Grebe, A.H. & Co.; (ID = 822167) mod-pre26 RORH ; Grebe, A.H. & Co.; (ID = 822168) mod-pre26
RORH ; Grebe, A.H. & Co.; (ID = 822169) mod-pre26 RORH ; Grebe, A.H. & Co.; (ID = 822170) mod-pre26
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RORH ; Grebe, A.H. & Co.; (ID = 822161) mod-pre26
Grebe, A.H. & Co.;: RORH [mod-pre26] ID = 822161 922x933
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For model RORH, Grebe, A.H. & Co.; Richmond Hill (NY):
The Grebe RORH Vacuum Tube Unit was introduced in 1920.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Grebe, A.H. & Co.; Richmond Hill (NY)
Brand
 
Synchrophase
Year: 1920 Category: Radio module pre 1926 (not a part, not a key)
Valves / Tubes 1: VT-Class-I or B_Moorhead-Shaw
Main principle Detector with Vacuum Tube (Valve), no tuner
Wave bands - without
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: RORH - Grebe, A.H. & Co.; Richmond
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Notes Needs external tuner. Both tubes listed are using a UV base, but other than later UV tubes the filament contacts are opposite, not adjacent. Schematics show a 4 Volt filament supply.
Price in first year of sale 17.00 $
Collectors' prices  
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in Radio Manufacturers of the 1920's, Vol. 2


All listed radios etc. from Grebe, A.H. & Co.; Richmond Hill (NY)
Here you find 186 models, 114 with images and 59 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Grebe, A.H. & Co.;: RORH
Threads: 1 | Posts: 1
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grebe: RORH
Alan Larsen
19.Sep.10
  1

Greetings,

The tube used was likely a Marconi/deForest Audion as that was the only tube that was advertised in the Mesco catalog. The Type 1 Marconi V.T. Detector tube advertised with the RORH sold for $14 in 1921

 
Grebe, A.H. & Co.;: RORH
End of forum contributions about this model

  
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