Key facts
- Manuals
- 1
- Languages
- EN
- Last added
- 2026-09-30
Featured Global Specialties manuals

Global Specialties GaK-409 Audio Control Switch User Manual
The GaK-409 is a remote‑controlled audio switch that uses a clap‑activated microphone to turn a relay on or off, allowing control of loads up to 10 A at 125 VAC (or 5 A at 220 VAC). The circuit employs a flip‑flop built from transistors and a potentiometer for sensitivity adjustment.
This manual details the technical specifications, operating principles, PCB assembly steps, testing procedure, and troubleshooting tips. It also lists component values and references an optional enclosure (GSB‑04) for hobby and educational use.
Covers: Technical Specifications · Operating Principles · PCB Assembly · Testing · Troubleshooting · Accessories
Latest Global Specialties manuals
Global Specialties GaK-409 Audio Control Switch User Manual
User Manual 2 pages · 443 KB · ENThe Global Specialties GaK-409 Audio Control Switch manual provides specifications, assembly instructions, testing, and troubleshooting for the…
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Global Specialties manuals
How does the GaK-409 switch turn on and off?
Clapping generates an audio signal that the microphone detects, triggering a flip‑flop circuit which drives the relay to change the switch state.
From: Global Specialties GaK-409 Audio Control Switch User Manual
What is the maximum load the switch can handle?
The switch can handle up to 10 A at 125 VAC or 5 A at 220 VAC.
From: Global Specialties GaK-409 Audio Control Switch User Manual
