Overview
The Beckman Industrial FG3B is a stable, low-distortion sweep/function generator designed for laboratory and service environments. Operating at 117V with a 20VA maximum power draw, this classic instrument covers the full frequency spectrum from 0.2Hz to 2.0MHz, making it suitable for a wide range of test and measurement applications in audio, vibration analysis, and general electronics troubleshooting.
Key Features
- Five Output Signal Types: Sine wave, triangle wave, square wave, TTL, and CMOS pulse outputs
- Linear and Logarithmic Sweep Modes: Variable sweep rates for frequency sweep testing and modulation analysis
- Wide Frequency Range: 0.2Hz to 2.0MHz frequency range
- Built-in Frequency Counter: Digital frequency display with auto-range capability
- AM/FM Modulation Capability: Support for amplitude and frequency modulation testing
- Compact Bench Design: Standard 117V AC input, integrated power management
Technical Specifications
- Input Voltage: 117V AC, 50/60Hz
- Power Consumption: 20VA Max
- Frequency Range: 0.2Hz to 2.0MHz
- Output Waveforms: Sine, Triangle, Square, TTL, CMOS
- Sweep Modes: Linear and Logarithmic
- Output Impedance: 50 ohm recommended termination
- Warranty (Original): One-year limited warranty (used units sold as-is)
- Display: Digital frequency counter with auto-ranging
Typical Applications
- Audio amplifier and speaker response testing
- Vibration testing and servo system evaluation
- General-purpose electronic circuit troubleshooting
- Educational demonstrations in electronics and audio engineering labs
- Frequency response analysis for vintage audio equipment
- AM/FM modulation studies and RF system testing
Compatibility & Replacements
Compatible With
- 50 ohm test loads and terminations
- Standard oscilloscopes (via output connectors)
- Audio analyzers and spectrum analyzers
- Servo test equipment and vibration measurement systems
- AC power distribution systems (117V 50/60Hz)
Replaces / Drop-In Replacement For
- Beckman Industrial FG3 (earlier model variant)
- Beckman Industrial FG3-A (alternative revision)
- Other vintage sweep generators with compatible frequency ranges
Works With
- Standard laboratory oscilloscopes and AC-coupled measurement equipment
- Coaxial cable connections (50 ohm recommended)
- RF and audio test benches
- Educational test platforms and vintage electronics labs
