/diy/ - Do It Yourself

>>2579221
>>2579226
But later I said I found it, it's a simple diode, use google translate if you really wish to read about it https://shematok.ru/diody/kd522b

>>2579231
>Wait that R2 and R3 are in series with the 0V, not the +12.4V rail?
No, it's my mistake. I had it right, but then moved them and fucked everything up. Thanks anon, the resistors have to be on + rail.

>The zener there can handle ~0.2A before reaching its power limit, not really sure if it's meant to be a higher-power and/or lower-noise rail than the 15V regulators. Chances are one is for a lower-noise part of the circuit than another, like a preamplifier stage.
Im sorry I cant answer this, don't have necessary knowledge. The diode says ZY 9.1 and it's soldered upside down. Maybe 9.1 is not voltage. I'd have to unsolder it and check it's another side for more info.

>Also when you get a voltage with X volts RMS, its peak voltage is X*√2 = X*1.414, so when you rectify and filter it you end up with X*1.414 volts DC, since the filter capacitor fills up to the peak voltage. So you may need to increase the voltage of your rail titles.
Does that mean my 12.4 AC will become 17.5 DC? This is some funny voltage...

>it also has a symbol specifically for a 3-pin wall plug
It's actually a receptacle IEC-320-C14 with a fuse like in the back of your PC, you put a cable inside. I didn't find it, so used general connector.