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[http://bama.edebris.com/manuals/tek/321a/ Tektronix 321A manual] | [http://bama.edebris.com/manuals/tek/321a/ Tektronix 321A manual] | ||
[http://w140.com/tek_fcp/tek_type_321_factory_cal_proc.pdf Tektronix 321 | [http://w140.com/tek_fcp/tek_type_321_factory_cal_proc.pdf Tektronix 321 factory calibration procedure] | ||
<gallery> | <gallery> |