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Up for sale is a cool vintage Test Burst Duration / Test Burst Frequency generator. This compact gray instrument was designed to produce controlled bursts of signals for testing and calibration purposes.
Controls & Features:
• Test Burst Duration (Microseconds) — adjustable knob with fine/coarse settings
• Test Burst Frequency (KC) — adjustable frequency control
• Shape Adjust, Fine Adjust, and other calibration knobs
• Multiple output connections including 600Ω Balanced output, plus additional BNC/red banana ports
• Power switch and indicator
• Clean, well-labeled front panel
This type of burst generator is commonly used in audio testing, loudspeaker evaluation, amplifier transient response testing, EMC/EMI work, or calibrating counters and detectors (pairs nicely with frequency counters or event counters like the Cawkell lightning flash counter).
Condition:
• Powers up reliably
• All knobs, switches, and controls operate smoothly with good feel
• Excellent cosmetic condition for its age — minimal wear, clean faceplate
• Looks great on the bench alongside other vintage test gear
Perfect for collectors of vintage laboratory/test equipment, electronics hobbyists, or anyone restoring a retro lab setup. These specialized burst generators are getting harder to find.
Condition Note: Fully tested to power on and respond to all controls. Sold as-is — buyer encouraged to perform additional testing. No manual included.
Includes:
• The Test Burst generator unit as shown
• Power cord
Shipping: Carefully packaged and shipped. Local pickup welcome in Tucson, AZ.
Message me with any questions — happy to answer or provide more photos/videos of it operating.
Great piece of vintage test gear with practical uses!

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