The Keithley 228A Programmable Voltage/Current Source is a versatile instrument designed for precision sourcing applications. It delivers accurate and stable voltage and current outputs, making it suitable for testing and characterizing electronic components and circuits. The 228A features a programmable interface that allows for automated testing and control, enhancing its utility in research, development, and manufacturing environments.

Keithley 228A Programmable Voltage / Current Source
The Keithley 228A is a programmable voltage/current source designed for precision sourcing applications. It provides accurate and stable voltage and current outputs, making it suitable for testing and characterizing electronic components and circuits. Its programmable interface allows for automated testing and control.
Product Condition & Availability
Keithley 228A Programmable Voltage / Current Source is in excellent working condition and has been thoroughly tested for performance and reliability. We offer both new and professionally refurbished options, depending on availability and customer preference.
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Shipping world-wide available:
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Integrated Solutions & Deployment Support
Beyond individual products, Aumictech provides end-to-end solutions for manufacturing line deployment and test station setup. Our team can assist with system integration, configuration, and equipment selection tailored to your production requirements.
Trusted Industry Experience
With over a decade of experience, Aumictech is a recognized leader in RF and optical test equipment sales and services. All units are supported by our in-house calibration and repair facility based in Downingtown, PA, ensuring technical reliability and long-term value.
Customer Commitment
We’re committed to exceptional customer service, offering a 15-day return or replacement (ROR) policy for peace of mind. Our team is always available to assist with pre- and post-sale support.
Fast Shipping & Flexible Payments
We offer rapid global shipping through FedEx, UPS, and DHL, with most orders dispatched within 1–3 business days. Multiple secure payment options are available, including PayPal, ACH, wire transfers, and major credit cards.
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