|'''REG4'''||7812||'''+12 V''' rail||[https://www.ti.com/lit/ds/symlink/lm340.pdf 78M PDF (TI)]
|}
<div style="border-left:4px solid #f0ad4e; background:#fcf8e3; padding:0.5em 1em; margin:1em 0;">
'''Note:''' REG3 vs REG4 silkscreen position needs confirmation against the TO-220 part numbers — only the REG1/REG2 silkscreen was clearly visible in image 3.
</div>
===Passive Components===