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:
| catalog_h_1935_oscillograph_687-a.pdf |