类型	电源	型号	电源HP6624A
测量电压范围	直流电压（V）	测量电流范围	直流电流（A）
测量电阻范围	50（Ω）

the hp agilent 6624a is a used power supply rated as shown.
0 - 7 vdc, 5 amp
0 - 20 vdc, 2 amp
0 - 20 vdc, 2 amp
0 - 50 vdc, .8 amp
programmable quad
gpib programming of voltage and current
measured voltage and current read-back over the gpib
two outputs can be connected in parallel or in series
automatic selection of operating voltage and current range
programmable over-voltage and over-current protection
self-test occurs at power-on from an gpib command
electronic calibration via gpib
10 store-recall states
scpi (standard comments for programming instruments)
vxi plug&play drivers