Re: General PSU Discussion and FAQ contributions

Hello all, this is my first post here, so please be kind
I have a couple of power SMPS power supplies, that are doing some wired stuff:
one of them, the Vcc (pin 7) of the UC3842, is fluctuating, it does seem to get to 16V, since I do see the square pulse on pin 6, but it is fluctuating between 13v and 10v!!
I have replaced the power IC, all caps and made sure all the resistors associated with this device are good. I use the light bulb to check the parts, since If I power it with the fuse in place, the rectifiers...

Re: New Members - please post your introductions here

Hello all, I have been looking for a forum which has a broad discussion board and I think I have found it...I am initiating my first post hoping to make friends and exchange ideas and expertise. Please be a little patient with me, since English is not my first language and will be making whole bunch of grammar and spelling errors. Please accept my apology in advance. I am about to start my first thread, regarding a couple issues that I have come across a few SMPS power supplies...I am hoping to get some help resolving my PS problems...Thank...