Jo22 wrote:Hi, not sure what to say.If an 78xx/79xx is faulty, it either shorts or passes the full voltage.
These voltage regulators aren't expensive and can be bought in your local electronics shop.
Just be sure to get the right parts. Some stabis can provide 0.5A, 1A or 1.5A (or 2A).
So also better check the suffix, (ex. 7805 vs 7805CT vs 7805G etc.)
Also keep in mind that pinout of 78xx and 79xx is not the same.
Jo22 wrote:Hi, yes, seems right to m. The older 8-Bit cards (SB1.x-2) also had -5v, I believe.
Tiido wrote:Higher ripple rejection is better.
Negative regulator is a small transistor sized thing (TO92 package), 79L05 written on it.
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