Electronics Laboratory Instruction with Oscilloscope, San Francisco State College (Updated two months ago)

You can view this bundle in the SFSU Over the Years collection area.

An instructor demonstrates the use of an oscilloscope to two individuals in an electronics laboratory at San Francisco State College. One observes the instrument closely while another follows along in a manual, suggesting a guided instructional or collaborative session in electronic measurement and signal analysis.

Tags: faculty, staff, and administration , historic technology , students and alumni

Added to SFSU Over the Years on July 31, 2026.

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Information

  • Identifier: TP-ATA-1836
  • Context: <p><strong style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="243" data-end="281">Oscilloscope (center of attention):</strong></p> <p>&nbsp;</p> <ul> <li style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="282" data-end="457"> <p data-start="284" data-end="389">The person on the lleft is operating a dual-trace analog oscilloscope, a standard tool for visualizing:</p> <ul data-start="392" data-end="457"> <li data-start="392" data-end="414"> <p data-start="394" data-end="414">Electrical waveforms</p> </li> <li data-start="417" data-end="436"> <p data-start="419" data-end="436">Voltage over time</p> </li> <li data-start="439" data-end="457"> <p data-start="441" data-end="457">Circuit behavior</p> </li> </ul> </li> <li style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="458" data-end="642"> <p data-start="460" data-end="562">He&rsquo;s pointing at the CRT (cathode-ray tube) display area, and adjusting dials that likely control:</p> <ul data-start="565" data-end="642"> <li data-start="565" data-end="580"> <p data-start="567" data-end="580">Time base</p> </li> <li data-start="583" data-end="617"> <p data-start="585" data-end="617">Vertical and horizontal gain</p> </li> <li data-start="620" data-end="642"> <p data-start="622" data-end="642">Trigger settings</p> </li> </ul> </li> </ul> <p><strong style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="656" data-end="689">Other Equipment behind the Oscilloscope</strong>:</p> <p>&nbsp;</p> <ul style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="690" data-end="903"> <li data-start="690" data-end="903"> <ul data-start="732" data-end="903"> <li data-start="732" data-end="806"> <p data-start="734" data-end="806">A <strong data-start="736" data-end="778">signal generator or function generator</strong> (gray box with black dials)</p> </li> <li data-start="809" data-end="847"> <p data-start="811" data-end="847">A <strong data-start="813" data-end="847">power supply or voltmeter unit</strong></p> </li> <li data-start="850" data-end="903"> <p data-start="852" data-end="903">Possibly a <strong data-start="863" data-end="884">frequency counter</strong> or audio amplifier</p> </li> </ul> </li> </ul> <p style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="905" data-end="944">These support tools would help provide:</p> <ul style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="945" data-end="1031"> <li data-start="945" data-end="972"> <p data-start="947" data-end="972">Stable signals to analyze</p> </li> <li data-start="973" data-end="1000"> <p data-start="975" data-end="1000">Bench-top voltage sources</p> </li> <li data-start="1001" data-end="1031"> <p data-start="1003" data-end="1031">Real-time frequency feedback</p> </li> </ul> <p><strong style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="1048" data-end="1078">What the People Are Doing:</strong></p> <p>&nbsp;</p> <ul style="caret-color: #000000; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" data-start="1079" data-end="1384"> <li data-start="1079" data-end="1186"> <p data-start="1081" data-end="1186">The person on the left<strong>&nbsp;</strong>is demonstrating how to use or interpret something on the oscilloscope.</p> </li> <li data-start="1187" data-end="1290"> <p data-start="1189" data-end="1290">The person in the middle is observing closely&mdash;maybe comparing what he sees to his own circuit.</p> </li> <li data-start="1291" data-end="1384"> <p data-start="1293" data-end="1384">The <strong data-start="1297" data-end="1325">p</strong>erson on the right&nbsp;is likely following along in a lab manual or workbook.</p> </li> </ul> <div>&nbsp;</div> <div><strong>Credits:</strong>&nbsp;</div> <p>Some technical descriptions and historical interpretations were developed with the assistance of ChatGPT, an AI language model by OpenAI.</p> <p>&nbsp;</p>
  • Geographic Coverage: San Francisco, CA
  • Type: Still Image
  • Format: Negative
  • Source: San Francisco State University Archives
  • Rights: Public

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