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History of the manufacturer  

Grebe, A.H. & Co.; Richmond Hill (NY)

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Name: Grebe, A.H. & Co.; Richmond Hill (NY)    (USA)  
Brand:
Synchrophase
Abbreviation: grebe
Products: Model types
Summary:

In the November 1924, The Radio Trade Directory, under the heading manufacturers of Vacuum Tube Sets on page 80, the A.H. Grebe & Co., 70 Van Wyck Boulevard, Richmond Hill, New York.
Trade Names: 'Grebe' and "Synchrophase".

In the August 1926, McGraw-Hill Radio Trade Catalog on page 212 the A. H. Grebe & Company was located at 109 West 57th Street in New York City, New York.

Founded: 1914
History:
1909: Mr. Grebes "factory" for receiving sets and parts was a one-story shack, the previous tool shed next to the greenhouse on the familys property at Van Wyck boulevard. He made crystal detectors and loose couplers for sale.
1914: The first catalog was issued.
1922: Mr. Grebe tore down the old house and built a new factory instead. 1925: Mr. Grebe was one of the managers of the New-Yorker 'THE INSTITUTE OF RADIO ENGINEERS, INC.' (until end of 1926).
The company had reached its peak with the famous "Synchrophase" receivers. This receiver did not require an Armstrong license (for reaction) but since it used neutralization Hazeltine sued Grebe for patent infringement, and the case was decided in favor of Hazeltine. Grebe had to pay for a license. Fewer of Grebes high-prices radios were sold, and eventually late in 1932 Grebe went bankrupt. He planned to return to production but he died of complications following a colostomy on Oct.24, 1935. Ref.: Alan Douglas: Radio Manufacturers of the 1920's, vol.2.


Some models:
Country Year Name 1st Tube Notes
USA  33 111B 111B 35  Push pull output stage. Silencer, to suppress noise when tuning (between stations). 
USA  31 160 [new] 24   
USA  30 ChassisAH1 160 [old]   One dial (primary tuning control knob) 
USA  30 18950 224  One dial (primary tuning control knob) Push-Pull amplifier directly following detector 
USA  29 SuperSynchrophase 21950A   One dial (primary tuning control knob) 
USA  29 SuperSynchrophase 21950B   One dial (primary tuning control knob) 
USA  28 2227 Table only   Matching Table for Grebe Radio, probably the AC-6. Radio Collectors Guide notes an AC powe... 
USA  28 SpeakerStand 2249   One dial (primary tuning control knob) 
USA  28 PwrAmp&Spkr 2250   One dial (primary tuning control knob) 
USA  30 225M 224  One dial (primary tuning control knob) Push-Pull amplifier directly following detector. Id... 
USA  30 225W 224  One dial (primary tuning control knob) Push_pull amplifier directly following detector. Id... 
USA  30 265   One dial (primary tuning control knob) 

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

Firmen-Logo: Grebe USA 1920ertbn_usa_grebe_1920er_firmenlogo.jpg
tbn_usa_grebe_logo.jpg
Scanned from the Grebe Folder for 1937/38 "Prest-O-Matic".tbn_grebe_folder_1937_38_title.jpg
Scanned from the Grebe Folder for 1937/38 "Prest-O-Matic".tbn_grebe_folder_1937_38_p1.jpg
Scanned from the Grebe Folder for 1937/38 "Prest-O-Matic".tbn_grebe_folder_1937_38_p2.jpg
Scanned from the Grebe Folder for 1937/38 "Prest-O-Matic".tbn_grebe_folder_1937_38_p3.jpg
QST 10/1922, p.603tbn_usa_grebe_firmengebaeude1922.jpg
1928 Automotive Trade magazinetbn_usa_grebe_synchrophase_seven.jpg
February, 1920 A. H. Grebe & Co. catalog preludetbn_usa_grebe_1920_catalog_leadin.jpg
Advert 192xtbn_us_ah_grebe_192x_address.jpg
Scanned from the Radio Retailing June 1927 page 5.tbn_rr_june1927_p5_grebe.jpg
Scanned from the Radio Retailing October 1928 front page.tbn_rr_october28_frontpage.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_1.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_2.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_3.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_4.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_5.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_6.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_7.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_8.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_9.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_10.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_11.jpg
Grebe 1923 Catalogue Sold on Ebay Seller: bearmountain2012 Ebay Item: 262078365106 on 12 Oct, 2015 for $127tbn_usa_grebe_1923_radio_catalogue_12.jpg
New Grebe Factory designed by architect, Eugene H. Klaber, and completed in 1922. Built at a cost of $85,000USD by Barney-Ahlers Construction Co., NYC. 80x125 feet, 3 story plus penthouse, Van Wyck av. at 310 Jamaica av., Richmond Hill (Queens) Long Island. references: NYT, 6Sept1922, pg6 American Contractor, 16July1921, pg58tbn_grebe_factory_construction_nyt_6sept1922_pg6.png

  
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