Looks like they are after two different regulated voltages - 182 v and 150 v. I don't know how critical it would be but using 100v zeners would be a bit out of range - 18v high and 50 v high.
Tom/W4OKW -----Original Message----- From: M. K. Hess [mailto:[email protected]] Sent: Friday, January 23, 2009 9:21 To: [email protected] Subject: [AMRadio] Strange rectifier configuration - UPDATE As an Addition..... If you'd like to see the full schem. of the unit. Check here on my website... Here's the link to the FULL scem. http://www.d1033982.mydomainwebhost.com/old-mike/Mike/n3eaq_files/BC1H_P ic/b c1h1_audio_schem_sm.pdf Thanks!!! MK - N3EAQ ________________________________________________________________________ ____ _______________________________________ Hi Folks, I'm working on the audio 1st stage of a Gates BC-1H transmitter. It has a rectifier with 4 zener diodes however, unlike most set ups where there are 4 of the same diode, this is using 3 different types, all of the same class, but with just a wee bit different specs.... It's using: 2x 1N3337A - 75V Zener (540 mA max, 56 Vrev Max) 1x 1N3338A - 82V Zener (490 mA max, 62.2 Vrev Max) 1x 1N3340A - 100v Zener (400 mA max, 76 Vrev Max) I only note above where the values are significantly different.... I'm just curious... Why do it with these 3 different diodes??? What does that buy them? Would the world end if I used 4 of the 1N3340A - 100V Zeners (since I have a slug of them in my parts box) as replacements?? Your sage wisdom is appreciated! Mike - N3EAQ ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body.
