Almost everyone uses a digital oscilloscope’s zoom features. However, did you know that 40-year-old analog oscilloscopes can do something similar? Delayed time bases on analog scopes sweep twice so that the user can see a slow and fast sweep. In this video, see where “zoom” came from and how engineers accomplished the same measurement back in the day.
Minor correction about the old scope that I showed. I kept calling it a “7704.” The 7704 is from the early 1970s. The unit I have is actually the updated model the 7704A.
Supplemental Content:
- Workbench Wednesdays 38: Which Oscilloscope Form Factor Is Best For Me?
- Image of Tek 7704 with P7001 Module
- Tek 7704A Information on TekWiki
Bill of Material:
| Product Name | Manufacturer | Quantity | Buy Now |
|---|---|---|---|
| Bench Oscilloscope - 200 MHz, 1 GSa/s, 14-bit, AFG, DMM | Multicomp Pro | 1 | Buy Now |
| Arbitrary Waveform Generator - 2 Channel, 160 MHz | Multicomp Pro | 1 | Buy Now |
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