Mislabelled Regulators

[bryantrv]

Pardon the stupid question, but isn't the 7918 a -18v regulator? Would it
not be a 7915 for -15v?

Chris Bryant, Tech Head Wanabe, DeLand, Forida


>Just built another power supply to test some new modules.  Measured the
>output voltages: positive supply 15.11 volts DC Negative -18.3 vDC.  Didn't
>make sense to me, so I ended up swapping regulators.  Same result.  This
>made me suspicious.  Replaced the negative regulator again, but this time
>from a different manufacturer.  This time the negative rail was -15 volts
>(close enuff).  Looks like someone sold me a batch of mislabelled 7918s.  I
>take it someone in Malaysia was feeling underpaid.
>
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