i'd tend to go with the newer substitution, the newer fast recovery diodes are probably more reliable, and probably faster which makes things easier on other parts of the power supply (it's a matter of how fast the diode goes from conducting under forward bias to blocking when the polarity reverses, all diodes take some time to turn on and off, while they are reverse biased and still conducting they put a terrible strain on things and waste power). it shouldn't add enough efficiency to the power supply to hurt anything. i found specs of 5 amp at 400v, though gamba's site says the original was a 3A (with the 5a being a recommended upgrade), that is a major diode. they can also be had from < http://www.derf.com> and several other places according to a google search for "mr824 diode", if you don't specify "diode" you get allot of genetics links. the diodes probably pass less current, but are probably overrated because of not being fast enough (that's a guess). i'd suggest any newer fast or ultra fast recovery diode in that current and voltage range. going to a diode with a slightly higher current rating is likely to improve reliability as well, that's usually how people increase reliability in electronics, by overspecing parts, nothing last long at it's "maximum" rating.
the pickle wrote: ------- > At 08:46 -0500 12/08/02, Rebecca Bittner wrote: > >We do not carry the MR854. However a possible sub is the 1N5404. I have > >attached a data sheet for your convenience. Thank you for contacting > >Digi-Key. > > > >Rebecca Bittner > >Technician > >Digi-Key Corporation > >1-800-344-4539 Ext. 1490 > >[EMAIL PROTECTED] > > If anyone wants the data sheet (I think it's a PDF and is probably available > from their site as well) let me know. ----------- -- "Promise me, promise me this day, promise me now..." he asked. "Even as they strike you down, you will remember: humanity is not our enemy. The only thing worthy of you is compassion...Hatred will never let you face the beast in human beings. One day, when you face the beast alone, with your courage intact, your eyes kind...out of your smile will bloom a flower. and...on the long, rough road, the sun and the moon will continue to shine." Thich Nhat Hanh, Buddhist monk -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> The FAQ: <http://macfaq.org/> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
