Re: 7603 weirdo inverted Z axis

Ed Breya

Unless the pot is hooked up backwards, the only way I can see that a signal can be improperly inverted is in an inverting gain stage that is damaged so that the input signal passes right through without inversion. This can happen in a common-emitter or opamp stage, where a failure or a missing part allows the signal to pass through the feedback loop rather than the active device.

Another possibility is that someone inadvertently changed the circuit during troubleshooting.


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