[Solved] Touch sensor circuit board (lamp repair) Dear Electro-tech-online, I am repairing a LED floor lamp in which the touch sensor (for on off and dimmer) has broken The lamp itself is an 8W LED It is wired from 220V to a transformer (located at the base of the lamp) to the broken touch sensor circuit board (located at the top, beneath
Light Controlled Resistor Simulation | Electronics Forum (Circuits . . . I'm using SPICE to simulate a circuit with a fair amount of complexity The actual circuit has a light controlled resistor in it which is crucial for correct operation The light that controls the LCR is not simply on or off The voltage drop will change dynamically and thus vary the
Where can I buy a powerful laser? - Electronics Forum (Circuits . . . I have an 80 foot tall tree, a 65 ft tree and 4 trees that are 55 ft tall Can't cut them down there are power lines, houses and thing in all directions No way to drop a tree without hitting something A licensed tree climber wants $1500 to cut them down 1 piece at a time He cuts all the
Type of resistor, and where can I salvage one? What type of resistor is this? Carbon? I see at least it is 0 22 ohm Where can I salvage an equivalent resistor? This was for the power supply circuit for an LCD How much difference in ohm can I get away with? **broken link removed**
How to fix: Serial Port COM3 not found. My arduino is working on my pc until I tried to connect my other Arduino on my pc, and an error occured, and showed below: Serial Port 'COM3' not found Did
Summing inverting amplifier query | Electronics Forum (Circuits . . . I built this circuit which performs as expected and the voltages all add up correctly but then I noticed I am running the chip at +6 -6v yet my output has managed -6 3v how can this happen if my negative supply rail is only -6v?