Re: HP 29C Message #3 Posted by Andrés C. Rodríguez on 30 Aug 1999, 5:27 p.m., in response to message #1 by Ralf Stolte
If you plan to use an external supply, keep in mind that the batteries work not only by smoothing but also by regulating the voltage. A capacitor would smooth the voltage, but since it will not regulate, the voltage will be higher than allowed !! A regulated 2.5 volt DC supply may work, connected into the batteries bay. Or a 3.2 volt DC supply, connected to the adapter pins. Please take this as a suggestion only, no warranties !! Also be careful about polarities !!
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