Manufacturer: General Radio Company (USA)
Model: 496-A, S#21
Vintage: 1931
Purpose: Oscilloscope Power Supply
Condition: Not Tested
Comments:
Although this is just a power supply, it belongs to the first commercially sold oscillograph, oscilloscope. General Radio was the first company offering an oscilloscope in 1931. The oscilloscope was made of multiple units:
- 496-A Power Supply
- 497-A Tube Mount
- 478-A Cathode Ray Tube
The CRT was made in Germany by Manfred von Ardenne.
This power supply is in great shape. Most likely it was used for demonstrations only at a college or university. The only modificatons I could identify were a few replaced resistors and one knob.
Model: 496-A, S#21
Vintage: 1931
Purpose: Oscilloscope Power Supply
Condition: Not Tested
Comments:
Although this is just a power supply, it belongs to the first commercially sold oscillograph, oscilloscope. General Radio was the first company offering an oscilloscope in 1931. The oscilloscope was made of multiple units:
- 496-A Power Supply
- 497-A Tube Mount
- 478-A Cathode Ray Tube
The CRT was made in Germany by Manfred von Ardenne.
This power supply is in great shape. Most likely it was used for demonstrations only at a college or university. The only modificatons I could identify were a few replaced resistors and one knob.
Documentation:
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