The Tektronix AA501 is an audio analyzer plug-in for the TM500 system.
It provides automated measurement of THD+N and levels (RMS responding) in the range of 10 Hz to 100 kHz. Harmonics are measured up to 300 kHz. It has four built-in weighting filters and allows the user to loop an external filter in. Option 01 adds intermodulation measurement. Input impedance is 100 kΩ unlike other analyzers with usually 1 MΩ or near-infinite input impedance. Internal THD in the audio band is specified as typically <−95 dB (0.0018 %). Residual THD+N is specified as <−90 dB (<0.0032 %).
It was one of the first, if not the first, audio analyzers capable of fully automatic measurements without requiring manual reference level setting, range selection or frequency fine-tuning. It is ideally combined with the SG505 low distortion oscillator.
The AA501 is two slots wide.
- please add
- Zenwizard Studios - AA501 Calibration and Alignment
- Zenwizard Studios - AA501A Repair
- Zenwizard Studios - AA501A Calibration and Alignment
- Zenwizard Studios - AA501 Troubleshooting and Repair
- See also F7523A1
Documents Referencing AA501
|Tekscope 1980 V12 N2.pdf||Article||New Products||1980||7854 • 468 • AA501 • SG505 • CG551AP • 1900 • 7612D|
|Tekscope 1980 V12 N3.pdf||Article||Automatic Distortion Analyzer Speeds Distortion Measurements||Bruce Hofer||1980||AA501 • SG505|
Measuring distortion of an SG502
Measuring distortion of an HP239A