Nope Bob, this guy definitely only had three 1N2069's in parallel - two cathodes to one anode connected directly to a 6.3V tranny.
I'm not looking to put it back the way he had it, I'm putting it back the way the schematic shows it with a 1N4007 instead of the 1N91 shown (already have in my junk box) and a filter cap. I'm just trying to understand how he was getting the 24V relay to work with a 6.3V tranny. - JT On Thu, Feb 14, 2008 at 10:49 PM, Bob Macklin <[EMAIL PROTECTED]> wrote: > Connecting diodes in parallel does not really effect the current like > connecting batteries in parallel. The diode with he lowest forward drop will > handle most of the current. > > But if you really had diodes connected with anode to cathode you don't have > a rectifier. That configuration is used in voltage limiter circuits. > > Got to Radio Shack and get some 1N4000 series diodes and use them for > rectifiers. You only need one for a 1/2wave rectifier. Or 4 connected in a > bridge for a full wave rectifier. > > Are you sure the ones you have are not connected in a bridge circuit. There > would be 4 diodes. And 2 of them would have the cathodes connected together. > The other 2 would have the anodes connected together. > > > Bob Macklin > K5MYJ > Seattle, Wa, > "Real Radios Glow in the Dark" > > ----- Original Message ----- > From: "JT Croteau" <[EMAIL PROTECTED]> > To: "Discussion of AM Radio in the Amateur Service" > <[email protected]> > > Sent: Thursday, February 14, 2008 7:38 PM > Subject: Re: [AMRadio] Cap Substitution > > > > > > As a follow up to all this talk.. > > > > The person who did this mod, was rectifying the power to this 24V > > relay with three 1N2069's in parallel with 2 cathodes facing one > > direction and the other cathode facing the opposite direction. These > > were wired to a dedicated 6.3V tranny he also added. Any idea why he > > would have done this rather than using the 24V tap on the filament > > transformer specially there for a 24V relay? I measure roughly 26V on > > this tap so I would assume the tranny is fine. > > > > -- > > JT Croteau, N1ESE - Manchester, NH (FN42gx) > > Contest Manager, TARA Skirmish > > > > ______________________________________________________________ > > 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. > > > > ______________________________________________________________ > 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. > -- JT Croteau, N1ESE - Manchester, NH (FN42gx) Contest Manager, TARA Skirmish ______________________________________________________________ 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.
