DC / AC power supply:
power source Keithley Instruments

The programmable Model 248 High Voltage Supply offers reversible polarity, excellent regulation, low output voltage ripple, and flexible operation. Two front panel digital displays provide accurate readings of voltage and current output. A separate display simplifies setting output values precisely. The Model 248's output can be set using the front panel controls, over the standard IEEE-488 interface, or via a remote analog voltage.

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