C e l es ti a l N o n e s u ch. PARTS or REPAIR Vintage HP 500B Frequency Meter HAM Radio Industrial Equipment. Exhibits signs of age such as surface wear and weathering. As they are part of the description, please enlarge all photographs to better ascertain details and condition. The packing peanuts we use are recyclable: #6. Thank you for shopping with us. Follow us for quality items and other assorted.