Heathkit GD-39 Ultrasonic Intrusion Alarm Assembly Operation Manual Circuit Parts List

This difficult to find Assembly and Operation Manual for the Heathkit Model GD-39 Ultrasonic Intrusion Alarm. This easy to build kit uses a solid state ultrasonic motion sensor and it is capable to turn on a load, lights or alarms. This manual is absolutely required to repair, recondition or build one of this excellent device. This booklet helps to understand how intrusion alarms works and it includes the circuit's design description, construction help, circuit diagrams, parts list and operating instructions.

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SPECIAL - HARD TO FIND ITEM Features: • Heathkit GD-39 Ultrasonic Intrusion Alarm Manual • Assembly notes with schematic diagrams • Design information - Calibration - Operation • Circuit description - Parts List • 39 Pages, many foldouts - © 1972 • Size: 8.5 W x 11 H x 0.12 D [in] Notes: • Original manual - Price: $15 - One available • S/H included within continental US

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• Only one item available unless otherwise indicated • Click the credit card pictures left to order • • E-Mails always answered unless return e-mail is blocked