Voltage Control Regulator Box type RB340

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A new voltage control box which was fitted to MGB roadsters & GT's with a dynamo - Part number GEU6605. Type RB340 Dynamo Regulator Control Box, also known as NCB133. This is the u prated 30amp version of this control box, often found in vehicles with higher specification electrical equipment. The RB340 control box superseded the RB310 and was commonly found in a wide range of popular British vehicles, including Austin, Jaguar, MG and Triumph products. Alternate codes: MBU1212, 37H6959, RB340. Show more