| Brand | Tektronix |
|---|---|
| Country/Region of Manufacture | United States |
Check the listing for details. AA 501 Audio/Distortion Analyzer - Option 2 includes Option 1. Condition: Used. Listed at 840.00 USD. AA 501 Audio/Distortion Analyzer - Tektronix 500 module - Option 2. It has four built-in weighting filters and allows the user to loop an external filter in. Internal THD in the audio band is specified as typically