Assorted Voltmeters and Ammeters (c. 1942) Models on Display:Voltmeters and Ammeters saving precious battery life when

saving precious battery life when shooting outdoors

"Street Racer" Cartridges

introduced in the late 1970s

hidden heart murmurs and save them onto magnetic disks to compare later

Neatly built into a rugged wood and faux-leather carrying case with a built-in scroll chart for quick reference

Assorted Voltmeters and Ammeters (c. 1942) Models on Display:Voltmeters and Ammeters saving precious battery life whenDC Voltmeters & Ammeters The voltmeters and ammeters (tools used to measure electrical voltage and current) represent the evolution of dial style monitoring screens, spanning from recording studios to rugged military cockpits. The large meter on the left features a wide view style that became a classic industry standard in the mid 1900s for its extreme clarity. Its scale, which includes a distinct red warning arc, was frequently used in radio