Ammeter 30-0-30 amps, Battery, Type D-30, US Navy PBM-5 Mariner Cold War made by Kollsman PN 647K-02

made by Kollsman PN 647K-02

An illustration of its position on an instrument panel is in the photos - from the US Air Forces C-119 Flying Boxcar flight manual dated 1950

Likely from the 1950s or 1960s

Type A-9 (glass cracked)

US Navy Type CV-22021

Ammeter 30-0-30 amps, Battery, Type D-30, US Navy PBM-5 Mariner Cold War made by Kollsman PN 647K-02Here is an aircraft battery Ammeter, Weston model 606, type T 203, as appeared on the flight engineers panel of aircraft of the US Navy such as the patrol bomber seaplane PBM 5 Mariner (see illustration showing the location on the panel from the PBM 5 flight manual dated 1944). The battery ammeter indicates the current flow through the battery charging system. A "zero center" ammeter, during charging, shows a (+) positive reading indicating the