03-06-2024, 12:54 PM
(This post was last modified: 03-06-2024, 12:55 PM by Mike Watterson.)
Thanks, Jeffrey.
Also LEDs etc are not going to replace the oven lamps, so they seem to be a safe choice for availability. The local mini-market at the petrol station has them. While B&Q or similar are not the best place to get a shaver transformer, they have them. It's the most available high isolation HT transformer, though limited to 20W, and has 110-120V centre tap. I use them with an extra hole drilled for earth pin of a 5A plug for mains/battery sets that often have no isolation and dubious safety. Also even isolated ones may have poor isolation.
The design will also use 200V electrolytics (common in SMPSUs and easier to get than 300+ types). The parts can all be bought new, or you can recycle most old PC AT SMPSUs for parts.
More soon, inc photos.
Also LEDs etc are not going to replace the oven lamps, so they seem to be a safe choice for availability. The local mini-market at the petrol station has them. While B&Q or similar are not the best place to get a shaver transformer, they have them. It's the most available high isolation HT transformer, though limited to 20W, and has 110-120V centre tap. I use them with an extra hole drilled for earth pin of a 5A plug for mains/battery sets that often have no isolation and dubious safety. Also even isolated ones may have poor isolation.
The design will also use 200V electrolytics (common in SMPSUs and easier to get than 300+ types). The parts can all be bought new, or you can recycle most old PC AT SMPSUs for parts.
More soon, inc photos.
