View Single Post
Old 26th Feb 2018, 8:37 am   #34
broadgage
Nonode
 
Join Date: Jan 2010
Location: North Somerset, UK.
Posts: 2,129
Default Re: HT / filament transformers from Aliexpress

I would not trust one of these for continual or long term unattended connection to the mains.
The markings clearly suggest that it is not intended for 240 volts input, which our mains still is in reality most of the time in most places.

As well as the risk of failure, remember that the mode of failure may be more dangerous than expected. The insulating materials used may be flammable, resulting in it burning like a firelighter rather than emitting a bit of smoke and then blowing a fuse.

Possibly OK for short term use for tests and experiments, but I would be uneasy regarding unattended operation, as for say a pantry transmitter.
broadgage is offline