- SR760 Stanford Research Spectrum AnalyzerCondition: UsedFrequency: 100 kHz
- SR770 Stanford Research Spectrum AnalyzerCondition: UsedFrequency: 100 kHz
- SR780 Stanford Research Signal AnalyzerCondition: UsedFrequency: 100 kHz
- SR785 Stanford Research Signal AnalyzerCondition: UsedFrequency: 102 kHz
- SR1 Stanford Research Audio AnalyzerCondition: UsedFrequency: 192 kHz