Tektronix DPO2024B Digital Phosphor Oscilloscope – 200MHz 4-CH – Works, Self-Test Fail. Tektronix DPO2024B Digital Phosphor Oscilloscope – 200 MHz, 4 Channels. • Tektronix DPO2024B oscilloscope. Great option for hobbyists, repair technicians, electronics learners, or anyone who needs a functional 4-channel scope for non-certified use.
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