Hewlett Packard 8566B 100Khz-22Ghz Spectrum Analyzer for PARTS/REPAIR

Hewlett Packard 8566B 100Khz-22Ghz Spectrum Analyzer.
Unit(s) power on. Cooling fan(s) quiet. Display bright, in focus with good range and no visual image burn-in.
Checked unit with RF signal generator at various frequencies and input levels. Unit drifts during warm-up and is not stable after.
Checked with external 10Mhz reference with no drifting and good stability. Last calibration sticker affixed.
Cosmetic Condition: Good. No feet. Rack ears on display unit.
Sold as shown. PARTS/REPAIR.