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Sound trigger
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Schmitt trigger photogate
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Delay unit
The photogate includes parts for two types of photogate cables:
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Individual emitter and detector
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Interrupter
The circuit incorporates our newest design, which includes both coarse and fine control of the delay interval and indicator LEDs for photogate and delay circuit operation.
The kit includes three feet of 2-conductor cable for splicing the output to a PC cord or Flash-to-PC adapter. The latter two items are not provided with the kit but can be purchased separately. See the Product Guide for various connection options. In order to trigger a camera, see the Camera Opto-Switch or this DIY method.
A 9-V battery or 9-V AC/DC Adapter is required to power the circuit.
Select MT for parts only, MT-BB for parts with breadboard, and MT-A for an assembled kit. We also sell a project box enclosure kit for the Multi-Trigger. See this page.
You can purchase this kit fully-assembled or with just the photogate cables assembled.
Click here for more information
on the completely-assembled Multi-Trigger.
Click here for more information on the Multi-Trigger Kit with assembled photogate cables.










