The HiViz WorkShop
AST. Amplified Sound Trigger Kit
| The complete Amplified Sound Trigger Kit is out-of-stock indefinitely. However, we do have the Output Cable Kit available. See below. See the Radio Shack website for the Mini-Amplifier (part no. 277-1008) and the Recorder Microphone (33-306.) |
|
| Click on photo to enlarge |
This amplified sound trigger responds to a wide range of audible frequencies. We've recommended a do-it-yourself version of this sound trigger for a number of years. The version shown to the right uses a Radio Shack Mini-Amplifier (part no. 277-1008) and Recorder Microphone (part no. 33-306). In addition, we have complete assembly instructions here.
| Mini-Amplifier: As mentioned above, this is Radio Shack part no. 277-1008. While other amplifiers will work, this is the one that we've tested in high-speed photography applications. The amplifier also has the convenience of small size and portability. |  |
| Recorder Microphone: This is Radio Shack part no. 33-306. A stand is included. Other dynamic microphones will do as long as they have a 1/8-inch (3.5mm) mono plug for connection to the amplifier output. Electret microphones may also work; the clip-on kind can be convenient for subjects like balloon bursts, since you can clip the microphone to your shirt. |  |
Output Cable Kit: A cable must be prepared to connect the output of the amplifier to a flash unit or trigger circuit. The Output Cable Kit includes the parts you need for the cord: 2-conductor cable, silicon-controlled rectifier, and 3.5mm phone connector for the amplifier. |
 |
| The Output Cable Kit also includes three adapters for coupling the sound trigger to the external input of a Multi-Trigger enclosure or directly to a flash unit. Included are a male RCA connector and cord couplers. |  |
We have a few microphones available.
