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883B Ch= 120372B

883B Ch= 120372B; Emerson Radio & (ID = 137407) Radio
 
883B Ch= 120372B; Emerson Radio & (ID = 794895) Radio
 
883B Ch= 120372B; Emerson Radio & (ID = 794896) Radio
 
883B Ch= 120372B; Emerson Radio & (ID = 794897) Radio
 
883B Ch= 120372B; Emerson Radio & (ID = 794898) Radio
883B Ch= 120372B; Emerson Radio & (ID = 2238698) Radio 883B Ch= 120372B; Emerson Radio & (ID = 2238697) Radio
883B Ch= 120372B; Emerson Radio & (ID = 2238699) Radio 883B Ch= 120372B; Emerson Radio & (ID = 794894) Radio
883B Ch= 120372B; Emerson Radio & (ID = 720294) Radio
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883B Ch= 120372B; Emerson Radio & (ID = 2238698) Radio
Emerson Radio &: 883B Ch= 120372B [Radio] ID = 2238698 1400x918
Select picture or schematic to display from thumbnails on the right and click for download.
For model 883B Ch= 120372B, Emerson Radio & Phonograph Corp.; New York, NY:
Greg Mercurio
 
Country:  United States of America (USA)
Manufacturer / Brand:  Emerson Radio & Phonograph Corp.; New York, NY
alternative name
 
Emerson Television
Year: 1958 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 12BE6 12BA6 12AV6 50C5 35W4
Main principle Super-Heterodyne (Super in general); ZF/IF 455 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 105 -125 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
Power out
from Radiomuseum.org Model: 883B Ch= 120372B - Emerson Radio & Phonograph
Material Modern plastics (no Bakelite or Catalin)
Shape Tablemodel with Clock ((Alarm-) Clock Radio).
Circuit diagram reference Beitman Radio Diagrams Vol. 18, 1958
Mentioned in Collector's Guide to Antique Radios (6th edition)
Literature/Schematics (1) Photofact Folder, Howard W. SAMS (Date 8-58, Set 410, Folder 7)

Model page created by Egon Penker. See "Data change" for further contributors.



All listed radios etc. from Emerson Radio & Phonograph Corp.; New York, NY
Here you find 1880 models, 994 with images and 1404 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Emerson Radio &: 883B Ch= 120372B
Threads: 1 | Posts: 4
Hits: 1438     Replies: 3
emerson: Ch= 120372B; 883B
Merlin Fisher
17.Sep.10
  1

 Radio has hum and distortion in the sound. CK all tubes  cleaned chassis. Any help   

                                                                                 Thanks  Merl

Thomas Albrecht
17.Sep.10
  2

Dear Merlin,

The most common cause of hum is bad electrolytic filter capacitors in the power supply.  In this radio, there are two such capacitors, C9 and C10 as shown on the schematic.  C9 and C10 are likely contained in a single aluminum can or paper cylinder.  If you replace those with new electrolytic capacitors, your hum will likely disappear.  The distortion may also be eliminated.

If the distortion persists, any paper capacitors in the radio would be suspects worthy of checking and replacing.  Also, this radio has a primitive integrated circuit called a "couplate" which looks like a rectangular ceramic capacitor, but with 7 leads.  The circuit diagram shows the parts inside this "integrated circuit," which you can reconstruct from individual components if necessary.  In particular, if the capacitor labeled C6 inside the couplate has high leakage current, it could cause distortion.  To check whether this capacitor has high leakage, simply check the voltage on the grid of the output tube (pin 2 of the 50C5).  If it is near 0.4 volts as shown on the schematic, and the cathode is near 6 volts, then C6 is not showing high leakage.  If either of those two voltages is significantly higher, that would be a sign of leakage in C6.

There can be other causes of distortion, which we can follow up on later if the above advice doesn't solve the problem.

Best regards,

Tom

Merlin Fisher
18.Sep.10
  3

 Thanks will try your input and get back to you   Merl

Thomas Albrecht
13.Oct.10
  4

Since the last post is not a question, let's allow this thread to circulate out of the forum current listings.

 
Emerson Radio &: 883B Ch= 120372B
End of forum contributions about this model

  
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