Gyrocompass Valve Amplifier

Valve amplifier.

ID:	NAV0487.3
Type:	Gyrocompass Valve Amplifier
Display location:	Not on display
Creator:	Unknown
Date made:	circa 1950
Credit:	National Maritime Museum, Greenwich, London
Parts:	Gyrocompass Gyrocompass (NAV0487.1) Gyrocompass control panel (NAV0487.2) Gyrocompass Valve Amplifier (NAV0487.3) Gyrocompass Amplifier panel (NAV0487.4) Gyrocompass bell, alarm (NAV0487.6)