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Synchrophase MU1 without chain table

Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 1007914) Radio
 
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2324504) Radio
 
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2324505) Radio
 
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2324506) Radio
 
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2324507) Radio
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 874325) Radio Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2119026) Radio
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2119027) Radio Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2119028) Radio
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2119029) Radio Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 2119030) Radio
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 785694) Radio Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 785701) Radio
Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 785697) Radio Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 785696) Radio
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Synchrophase MU1 without chain; Grebe, A.H. & Co.; (ID = 874325) Radio
Grebe, A.H. & Co.;: Synchrophase MU1 without chain [Radio] ID = 874325 933x549
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For model Synchrophase MU1 without chain table, Grebe, A.H. & Co.; Richmond Hill (NY):
Grebe MU-1 Front View
 
Country:  United States of America (USA)
Manufacturer / Brand:  Grebe, A.H. & Co.; Richmond Hill (NY)
Brand
 
Synchrophase
Year: 1924 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: UV201A UV201A UV201A UV201A UV201A
Main principle TRF without regeneration; 2 AF stage(s); Neutrodyne
Tuned circuits 3 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Synchrophase MU1 without chain [table] - Grebe, A.H. & Co.; Richmond
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 560 x 220 x 330 mm / 22 x 8.7 x 13 inch
External source of data Ernst Erb
Source of data Collector's Guide to Antique Radios (7th Edition)
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in The Radio Collector's Directory and Price Guide 1921 - 1965


All listed radios etc. from Grebe, A.H. & Co.; Richmond Hill (NY)
Here you find 188 models, 119 with images and 60 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Grebe, A.H. & Co.;: Synchrophase MU1 without chain
Threads: 1 | Posts: 4
Hits: 3039     Replies: 3
grebe: MU1;
Robin Roeckers
20.Jan.09
  1

I have permission from an eBay seller to use photos of a 1925 Grebe Syncrophase MU1.  He lists it as being an early version that did not have the chain that ganged the knobs together.  Is there such a thing or is this set just missing some parts?

Attachments

Konrad Birkner † 12.08.2014
21.Jan.09
  2

The first version of MU1 appeared in September 1924.

In August 1925 the tuning dials were coupled by chains. Thus one dial can operate all three - or they can be set separately at will. US Patent 1,608,734.

Since there are no pulleys on top of the tuning dials, the set must be the early version before Aug.1925.
 

Ref.: Alan Douglas, Radio Manufacturers of the 1920's, vol.2, p.62 ff.

Robin Roeckers
22.Jan.09
  3

Thank you, Konrad!

I must get copies of the Alan Douglas books sometime soon.

I will add this as a 1924 model because the listings show 2 for 1925 and 1 for 1930.

Robin

Reiner Scholz
21.Feb.10
  4

But  picture 1 is not the 1924 model as it is showing both, the chains and the master control release nut.

 
Grebe, A.H. & Co.;: Synchrophase MU1 without chain
End of forum contributions about this model

  
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