According to the Protek B801 Overview at TEquipment and BRL Test , the unit features: 0.02Hz to 2MHz across seven ranges.
A: Yes. Page 23 lists the DC input jack as a 5.5mm x 2.1mm center positive barrel connector . protek b801 manual link
Need a physical copy? The official ProTek RC support team can mail you a printed manual for the cost of shipping (approx. $4.95 USD within the continental US as of 2024). According to the Protek B801 Overview at TEquipment
The is a 2MHz Sweep Function Generator designed for electronic testing, calibration, and signal generation. Finding a direct, single-page manual link for this specific legacy model can be challenging, as it is often bundled with similar models like the B803 or B810. Direct Manual & Documentation Links While a standalone manual for only the Need a physical copy