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Driver Amplifiers

Driver Amplifiers were used in hydro systems throughout the 1990's as part of the Electro-Hydraulic Interface (EHI). They not only provide a method for controlling many different types of valves, but they also allow for a separate manual control.

Direct Replacement
Direct Replacement with Removable Terminal Blocks

Unfortunately, when a Driver Amplifier fails, it must be replaced in order to move the wicket gates, blades, or needles even in manual control.

American Governor offers full support for Driver Amplifiers.

New Driver Amplifier
New Driver Amplifier Assembly

Our proven designs offer the following benefits:

    • Drop in replacement - no wiring changes required
    • Clearly labeled adjustments
    • Additional test points added
    • Removable terminal blocks on all models
    • Fuses on external circuits
    • Modern components
    • Low thermal drift
    • Same physical mounting
    • Reverse polarity protection
    • Best practices incorporated into all designs

Clear Labeling
Many improvements including clear labeling
and additional test points

All types of Driver Amplifiers are supported. Both new and reconditioned boards are available. Refer to part number below when ordering.

 

Driver Amplifier Parts

Part NumberDescription
5421-112Driver Amplifier
5421-128Driver Amplifier
5421-142Driver Amplifier
5421-146Driver Amplifier
5421-167Driver Amplifier
5421-178Driver Amplifier
5421-202Driver Amplifier
5421-215Driver Amplifier
5501-341Driver Amplifier per 9933-520
5501-342Driver Amplifier per 9933-520
5501-343Driver Amplifier per 9933-520
5501-344Driver Amplifier per 9933-520
5501-378Driver Amplifier per 9933-520
9933-520Generic Schematic for 5501 Series
 

 

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