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Picture
Manufacturer:    SYLVANIA (USA)
Model:                    131, S#1038
Vintage:                 1946
Purpose:                General Purpose
Condition:            Original, Working



Comments:
This unit is in very good condition. Amazingly it is working fairly well. 
There were two versions of the 131. This is the earlier 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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