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Picture
Manufacturer:    General Radio Company (USA)
Model:                    687-B, S#293
Vintage:                 1935
Purpose:                Oscillograph
Condition:            Not Tested



Comments:
This is the first oscilloscope, which included amplifier and sweep generator in one unit. GenRad was the first company offering a "compact" unit to their customers. Before separate units were required.
This scope came from Europe. It is in amazing condition and only one potentiometer required replacement. The CRT is a RCA 907. 


Documentation:
catalog_h_1935_oscillograph_687-a.pdf
File Size: 4572 kb
File Type: pdf
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