The GPP series regulated DC power supply 
series are light weight, adjustable, 
multifunctional work stations. The GPP-1326 
has a 1 independent adjustable voltage outputs 
with sense.The GPP-2323 has a 2 independent 
adjustable voltage outputs. The GPP-3323 three 
independent outputs: two with adjustable 
voltage levels and one with fixed level 
selectable from 1.8V, 2.5V, 3.3V and 5V. The 
GPP-4323 has four independent voltage 
outputs that are all fully adjustable.             
The GPP series can be used for logic circuits 
where various output voltage or current are 
needed, and for tracking mode definition 
systems where plus and minus voltages with 
insignificant error are required. 
The three output modes of GPP series, 
independent, tracking series, and tracking 
parallel, can be selected through pressing the 
TRACKING key on the front panel. In the 
independent mode, the output voltage and 
current of each channel are controlled 
separately. The isolation degree, from output 
terminal to chassis or from output terminal to 
output terminal, is 500V.  
In the tracking modes, both the CH1 and CH2 
outputs are automatically connected in series 
or parallel; no need to connect output leads. In 
the series mode, the output voltage is doubled; 
in the parallel mode, the output current is 
doubled.