i thought you might suggest that but i do know things. i just did not understand what your references were. i assure you ive had lots experience with high and low voltage. I was the General Contractor on my own homes construction. I did all the electrical wiring myself. connected hundreds of lights and switches. Installed electrical panels, and was recently the electrician on my own swimming pool. did the high voltage and the low voltage. I programed the pools automation too. and I knew nothing when i began. That is just the kind of person i am. I also have junk bins full of electronics, switches, relays, and now that you have confirmed what T1 is im sure i can find one in my transformer bin. I dont mean to ramble but i also make furniture. Never knew a thing about it a few years ago but ive made some pretty incredible things. And Ive never lost a single digit. ive got tools in my shop that can cause more damage that 110V (lol) What im trying to say is i can learn and be cautious at the same time.
Im not angry or mad by your comments. not one bit. if your still uncomfortable helping me i completely understand.
I've done a quite a lot of house wiring, and a lot of electronics.
Home-made electronics may not work first time and may need fault-finding. When doing that it's really easy to leave a multimeter on Amps when measuring voltage, or to touch the wrong pin of an IC when looking at if from underneath, and the IC pins are close together so really easy to get the voltmeter pin to short two together. However, when working on low voltages, it's all safe and it's easy to blow an IC but it's really quite difficult to do real harm to oneself.
House wiring doesn't have nearly as much possibility for subtle mistake. Terminals have big separation, so it's easy to check voltages, and it's all relatively simple, and testing is either measuring voltages, or turning off and measuring resistance.
Your circuit would probably work, but it would be very difficult to fault-find safely. There are lots of ways it could go wrong. For instance, if D3 has a bad connection, IC1 and C1 will probably both explode. So you could leave them out and check the voltage, but you would need the circuit live for that. If your circuit didn't work, you have to ask yourself what would you measure and how would you do it safely.
I have worked on transformerless supplies like that, but they are the ones that make me the most nervous for the reasons I've outlined above.
Several discussion forums ban talking about transformerless supplies, as they are considered dangerous. This forum allows us to discuss transformerless supplies, but we are generally very cautious in offering advice due to the ease of making a big mistake.
K Moffett's circuit is really simple on the 110V side, and the rest is at low voltage, so it's much easier to work on safely.