Apple SCSI TermPWR; Was Re: This is funny (ebay)

It's not particuarly important as far as its function is concerned, since the forward voltage is just another factor that has to be taken into account in the design of the TermPwr circuit. What's more, there's no place where it says it has to be a silicon diode, since it could be a schottky diode with only 0.2 volts of Vf anyway. Most of the time, however, I'd suspect it's a mosfet that's enabled by a jumper setting. That will have some forward voltage loss due to its resistive nature, but not terribly much at the small currents, normally used for TermPwr. Modern MOSFETs have an on-resistance well under 0.1 ohm. Dick ----- Original Message ----- From: "Stan Barr" <stanb(a)dial.pipex.com> To: <classiccmp(a)classiccmp.org> Sent: Monday, February 25, 2002 1:26 AM Subject: Re: Apple SCSI TermPWR; Was Re: This is funny (ebay)