---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Tue 05/05/09: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:33 AM - Re: Re: 912ULS integrated alternator question (Malcolm Ferguson) 2. 04:54 PM - Re: Re: 912ULS integrated alternator question (Noel) 3. 05:52 PM - Re: Re: 912ULS integrated alternator question (Pete Christensen) 4. 06:40 PM - Re: Re: 912ULS integrated alternator question (Noel) ________________________________ Message 1 _____________________________________ Time: 03:33:39 AM PST US From: "Malcolm Ferguson" Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question John Deere make a nifty little 20 amp permanent magnet alternator and likewise a regulator that should be inter changeable with the Ducati one. Should have JD reliability. Part numbers are AM877557 for the alternator ($160), and AM101406 for the regulator ($67). Good article on the above: http://home.hiwaay.net/~langford/corvair/dynamo.html Regards, Malcolm ________________________________ Message 2 _____________________________________ Time: 04:54:51 PM PST US From: "Noel" Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question 57kmF you must be a ham! Noel -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Pete Christensen Sent: 04 May 2009 07:46 PM Subject: Re: RotaxEngines-List: Re: 912ULS integrated alternator question I put a capacitor the size of a beer can in mine. It's 57,000mF. But I had it in my junk box. Pete Hell Paso ----- Original Message ----- From: "Craig Payne" Sent: Monday, May 04, 2009 10:23 AM Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question > The size stated in the installation manual is 22 thousand uF (microfarads) > (image attached). This is a fairly large electrolytic capacitor, probably > about an inch or so in diameter and 2 to 3 inches long. > > "- a capacitor (Fig. 67 Pos. (25)) of at least 22 000 uF / 25 V is > necessary > to protect the correct functioning of regulator and to flatten voltage. > The > regulator is not designed to store any electrical charge. If for any > reason > the battery or bus system is disconnected from the regulator while the > engine is running (i.e. the master switch is shut off) the capacitor will > safely absorb and dissipate the electrical charge produced by the > generator. > Otherwise the regulator would be damaged." > > -- Craig > > -----Original Message----- > From: owner-rotaxengines-list-server@matronics.com > [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of pasj66 > Sent: Monday, May 04, 2009 8:41 AM > To: rotaxengines-list@matronics.com > Subject: RotaxEngines-List: Re: 912ULS integrated alternator question > > > Correction on capacitor size: 22 mF... > > Regards > Patrik > > -------- > MCR R100, R914UL3 W/IC > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=242637#242637 > > > Checked by PC Tools AntiVirus (6.0.0.19 - 10.004.028). http://www.pctools.com/free-antivirus/ ________________________________ Message 3 _____________________________________ Time: 05:52:07 PM PST US From: "Pete Christensen" Subject: Re: RotaxEngines-List: Re: 912ULS integrated alternator question Yup Noel, I'm a ham. I got the capacitor the size of a beer can from an old power supply in my junk box. Bought the 50# power supply at a ham auction for $0.50 and have stored it for 15 years just to use one part on my Kitfox. Anyone need a 30# 8 Volt transformer? Pete Hell Paso TX moving to Austin Kitfox III 912 Grove ----- Original Message ----- From: "Noel" Sent: Tuesday, May 05, 2009 8:23 PM Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question > > 57kmF you must be a ham! > > Noel > > -----Original Message----- > From: owner-rotaxengines-list-server@matronics.com > [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Pete > Christensen > Sent: 04 May 2009 07:46 PM > To: rotaxengines-list@matronics.com > Subject: Re: RotaxEngines-List: Re: 912ULS integrated alternator question > > > > I put a capacitor the size of a beer can in mine. It's 57,000mF. But I > had > > it in my junk box. > > Pete > Hell Paso > > ----- Original Message ----- > From: "Craig Payne" > To: > Sent: Monday, May 04, 2009 10:23 AM > Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question > > >> The size stated in the installation manual is 22 thousand uF >> (microfarads) >> (image attached). This is a fairly large electrolytic capacitor, probably >> about an inch or so in diameter and 2 to 3 inches long. >> >> "- a capacitor (Fig. 67 Pos. (25)) of at least 22 000 uF / 25 V is >> necessary >> to protect the correct functioning of regulator and to flatten voltage. >> The >> regulator is not designed to store any electrical charge. If for any >> reason >> the battery or bus system is disconnected from the regulator while the >> engine is running (i.e. the master switch is shut off) the capacitor will >> safely absorb and dissipate the electrical charge produced by the >> generator. >> Otherwise the regulator would be damaged." >> >> -- Craig >> >> -----Original Message----- >> From: owner-rotaxengines-list-server@matronics.com >> [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of pasj66 >> Sent: Monday, May 04, 2009 8:41 AM >> To: rotaxengines-list@matronics.com >> Subject: RotaxEngines-List: Re: 912ULS integrated alternator question >> >> >> Correction on capacitor size: 22 mF... >> >> Regards >> Patrik >> >> -------- >> MCR R100, R914UL3 W/IC >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=242637#242637 >> >> >> >> >> >> >> >> >> >> > > > Checked by PC Tools AntiVirus (6.0.0.19 - 10.004.028). > http://www.pctools.com/free-antivirus/ > > > ________________________________ Message 4 _____________________________________ Time: 06:40:46 PM PST US From: "Noel" Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question 30# 8V... no but it would make a decent anchor VO1 PL Noel -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Pete Christensen Sent: 05 May 2009 10:21 PM Subject: Re: RotaxEngines-List: Re: 912ULS integrated alternator question Yup Noel, I'm a ham. I got the capacitor the size of a beer can from an old power supply in my junk box. Bought the 50# power supply at a ham auction for $0.50 and have stored it for 15 years just to use one part on my Kitfox. Anyone need a 30# 8 Volt transformer? Pete Hell Paso TX moving to Austin Kitfox III 912 Grove ----- Original Message ----- From: "Noel" Sent: Tuesday, May 05, 2009 8:23 PM Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question > > 57kmF you must be a ham! > > Noel > > -----Original Message----- > From: owner-rotaxengines-list-server@matronics.com > [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Pete > Christensen > Sent: 04 May 2009 07:46 PM > To: rotaxengines-list@matronics.com > Subject: Re: RotaxEngines-List: Re: 912ULS integrated alternator question > > > > I put a capacitor the size of a beer can in mine. It's 57,000mF. But I > had > > it in my junk box. > > Pete > Hell Paso > > ----- Original Message ----- > From: "Craig Payne" > To: > Sent: Monday, May 04, 2009 10:23 AM > Subject: RE: RotaxEngines-List: Re: 912ULS integrated alternator question > > >> The size stated in the installation manual is 22 thousand uF >> (microfarads) >> (image attached). This is a fairly large electrolytic capacitor, probably >> about an inch or so in diameter and 2 to 3 inches long. >> >> "- a capacitor (Fig. 67 Pos. (25)) of at least 22 000 uF / 25 V is >> necessary >> to protect the correct functioning of regulator and to flatten voltage. >> The >> regulator is not designed to store any electrical charge. If for any >> reason >> the battery or bus system is disconnected from the regulator while the >> engine is running (i.e. the master switch is shut off) the capacitor will >> safely absorb and dissipate the electrical charge produced by the >> generator. >> Otherwise the regulator would be damaged." >> >> -- Craig >> >> -----Original Message----- >> From: owner-rotaxengines-list-server@matronics.com >> [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of pasj66 >> Sent: Monday, May 04, 2009 8:41 AM >> To: rotaxengines-list@matronics.com >> Subject: RotaxEngines-List: Re: 912ULS integrated alternator question >> >> >> Correction on capacitor size: 22 mF... >> >> Regards >> Patrik >> >> -------- >> MCR R100, R914UL3 W/IC >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=242637#242637 >> >> >> >> >> >> >> >> >> >> > > > Checked by PC Tools AntiVirus (6.0.0.19 - 10.004.028). > http://www.pctools.com/free-antivirus/ > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rotaxengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RotaxEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rotaxengines-list Browse Digests http://www.matronics.com/digest/rotaxengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.