Hi!, firstname.lastname@example.org wrote: > ... > The cathode (the black line at the top of the triangle) is marked as a black > band around the diode (silver when diode is black itself). For speed reasons > you better can use so-called Scottky-diodes (spelling ??). No, the 1N4148 is fast enough for sure. The Schottky (BAT85 for example) is used because of its small drop-out voltage (about 1/3 of the normal silicon diodes). When using a silicon diode like above (in series with some digital line), the 'low' logical level will rise above 0.6v. The Schottky will only lift it up by 0.2v. BTW, the XE1541 has Schottky diodes too, because of the same reason. Best regards, L. Message was sent through the cbm-hackers mailing list
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