1. turynturyn

    What is this part?

    Hello, I wanted to fix my radio as it didn't quite catch AM. I found an orange part with two little wires soldered to it. Does ANYBODY know what that is? I looked through Google and nothing. AI told me it could be an inductor or some coil.
  2. lygion

    How do you reduce the capacitance of a thin copper tube antenna without reducing its size

    Hi all :) I have a straight piece of 3/4 inch (~10mm) diameter copper tubing that is around 40cm long. It’s being used as an antenna as part of a Theremin circuit I’m building; essentially this means that this copper antenna is acting as a capacitor to ground, and has its own (tiny) capacitance...
  3. BrokenPin

    is it a good idea to stitch 4 copper polygons together to increase current capabilities?

    Hi all, I have a 4-layer PCB with a below layer-stack and I will be having a net that is supposed to handle 100A. I know I should use a heavy copper PCB instead of this 4-layer PCB but to save cost I stitched 4 polygons on all layers with (0.5 hole size, 1 diameter) vias to accommodate the high...
  4. R

    Tesla Coil Not Working. Transistor Getting Extremely Hot

    Tesla Coil Not Working. Transistor Getting Extremely Hot. See The image Below. I Did not use a switch and i did not use an led
  5. D

    busbar current capacity

    Hi, I wonder how a maximum current rating for wires and busbars are calculated. How the maximum current rating for busbars are calculated, is there any standard for this. I used a copper busbar for my motor connection. but i need how much max current can be passed through it, is there any...
Top