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Picture
Manufacturer:    SYLVANIA (USA)
Model:                    131, S#2455
Vintage:                 1948
Purpose:                General Purpose
Condition:            Unknown



Comments:
This unit is in very good condition. Some modifications were made. 
There were two versions of the 131. This is the later version. At around serial number 2000, the front-plate design changed, to look similar to the 132.
Any versions of the 131 are rare. I have to assume that most customers went straight for the 132 with a 7in CRT. The inner design of the 131 is similar to the 132 with "I-Beam" chassis and tubes upside down. This is somewhat awkward to work on. There are about a dozen screws which need to be removed for opening the housing. Other scopes of that era (i.e. Dumont, RCA) had a better mechanical design. Sylvania had only a brief period of scope production, about 20 years, from mid 30s to mid 50s.
Thanks to Kent Stephenson for manual and sales brochure. 


Documentation:
sylvania_131_manual.pdf
File Size: 9034 kb
File Type: pdf
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sylvania_how_to_service_radios_with_oscilloscope.pdf
File Size: 5446 kb
File Type: pdf
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sylvania_news_1946_11.pdf
File Size: 2324 kb
File Type: pdf
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sylvania_news_1947_08.pdf
File Size: 3092 kb
File Type: pdf
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sylvania_oscilloscope_131__green__sales_pg1.jpg
File Size: 2040 kb
File Type: jpg
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sylvania_oscilloscope_131__green__sales_pg2.jpg
File Size: 1490 kb
File Type: jpg
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sylvania_oscilloscope_131__green__sales_pg3.jpg
File Size: 2277 kb
File Type: jpg
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sylvania_oscilloscope_131__green__sales_pg4.jpg
File Size: 1956 kb
File Type: jpg
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