![Picture](/uploads/8/9/7/7/89778727/genrad-687-b-s-293-tn_1_orig.jpg)
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.
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:
![](http://www.weebly.com/weebly/images/file_icons/pdf.png)
catalog_h_1935_oscillograph_687-a.pdf | |
File Size: | 4572 kb |
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