The Philips PM3256 is a portable, dual-channel analog oscilloscope engineered for electronic testing, troubleshooting, and measurement across service, repair, and educational settings. This benchtop instrument delivers 75 MHz bandwidth with 1 MΩ input impedance and ±3% measurement accuracy, making it suitable for mid-range analog signal analysis. The unit features a P31 phosphor CRT display with 8 × 10 cm graticule divisions and fine 2 mm markings along central axes for precise waveform reading.
Technical Specifications
• Bandwidth: 75 MHz
• Analog Channels: 2
• Input Impedance: 1 MΩ
• Display: P31 phosphor CRT, 8 × 10 divisions (1 cm per division)
• Measurement Accuracy: ±3%
• Maximum Input Voltage: 400 V (DC plus AC peak)
• Power Input: 110–240 VAC, 38 W, 50–400 Hz
– Key Features
• Portable form factor with integrated CRT display for field and bench use
• Two independent analog channels for dual-signal observation and comparison
• High input impedance minimizes circuit loading during measurement
• Graticule design includes coarse 1 cm divisions and fine 2 mm central reference marks
• Dual safety certifications: PM3256 (IEC Class I) and PM3256U (IEC Class II) variants
• Universal AC supply compatibility across 110–240 VAC ranges
• Low power consumption at 38 W enables portable operation
– Typical Applications
• Electronic circuit diagnosis and component-level troubleshooting
• Signal integrity verification in analog circuit design and validation
• Educational demonstrations in electronics training programs
• Field service and repair work requiring portable, multi-channel observation
– Compatibility & Integration
The PM3256 operates on standard AC mains with input frequency tolerance across 50–400 Hz, accommodating industrial power distributions and variable-frequency sources. Maximum input rating of 400 V (DC plus AC peak) sets overvoltage protection boundaries. Complete service and operating documentation is available for maintenance and reference.
