All Questions
5 questions
2
votes
2
answers
361
views
Will an isolation transformer have a noticeable effect on mains hum? Also critique my DIY transformer idea
(Uber-edit - it has come to my attention that I am an ignoramus. This post is being left in place not to highlight my stupidity in particular, but to serve as a warning for others who think ...
- 129
1
vote
4
answers
469
views
Keeping a cheap, DIY transformer safe
I want to design a cheap but safe, low-wattage, always-on heater to keep a small space above freezing. (A small underground tunnel that the water pipe for an automatic horse waterer goes through.)
I'...
- 209
0
votes
3
answers
597
views
How could I make a 1kW fan heater consume less electricity? [closed]
My fan heater has only two settings, 1kW and 2kW.
But what if I wanted it to consume only 200W per hour ? Could I find a device to put in between to supply less electricity, how would I do that?
- 11
6
votes
4
answers
70k
views
Mains LED light bulb flickers when switched off [closed]
We have LED bulbs in our apartment. In the bathroom, the bulb flickers on and off when it's switched off. Same when it was a CFL bulb before I switched to LED cause I hate CFLs. Our mains voltage is ...
- 173
0
votes
3
answers
2k
views
Splitting mains power into multiple relay-switched circuits
Summary Introduction
My goal is to split a 1-gang mains power extension lead into three, have my Raspberry Pi plugged into one of the outputs, and have the Pi able to switch the other two outputs ...
- 103