Keithley Model 220 Programmable Current Source

The Model 220 Current Source is an economical, programmable solution for precision sourcing of DC current. Constant current sources are needed when a device or material is best characterized by controlling the current through it, rather than the voltage across it.

Features:

• ±0.5pA to ±101mA DC output
• 1014Ω output resistance
• ±1V to ±105V programmable V-LIMIT
• Hardware Trigger IN/OUT
• IEEE-488 (GPIB)
• 100-point source memory
• Programmable Digital I/O

In good working condition, images form part of the description.