i need help designing a simple circuit to add to my Panasonic HDCAM. i want to use the camera's record switch (14 vdc signal) to create a momentary pulse each time the camera recorder turns on or off. The pulse should last at least 100-200 ms since i want to use that pulse to momentarily close a relay to control a MP3 recorder. All this needs to fit inside the camera battery plate; the available space is about 1"x 1" x3/8" high. The camera is powered by a 16 v battery.
thanks for any advice/diagrams you may have.
ed
thanks for any advice/diagrams you may have.
ed