---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Wed 04/13/11: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:45 AM - Re: coil tuning anyone? (Dan Billingsley) 2. 05:00 AM - Re: Autocad on the web (John Morgensen) 3. 06:02 AM - Re: Autocad on the web (ROGER & JEAN CURTIS) 4. 08:46 AM - Re: coil tuning anyone? (MikeRV6-A) 5. 09:46 AM - Re: AEC9004 (Robert L. Nuckolls, III) 6. 10:56 AM - Re: coil tuning anyone? (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 12:45:28 AM PST US From: Dan Billingsley Subject: Re: AeroElectric-List: coil tuning anyone? ----- Original Message ---- > From: "Robert L. Nuckolls, III" > To: aeroelectric-list@matronics.com > Sent: Tue, April 12, 2011 6:45:29 PM > Subject: Re: AeroElectric-List: coil tuning anyone? > > > > > > If you have any suggestions on > > what might make the following project work better, I'm all ears. > > http://www.easytreasure.co.uk/bfo.htm > > I just reviewed this schematic again with some > attention to the audio section . . . the > thing has serious design flaws. We were > focused on the oscillators and I didn't really > do any kind of sanity check on the rest of it. > The guy who designed this obviously had little > knowledge of how to build stable, multi-stage > amplifiers from transistors. > > You may be trying to build and troubleshoot > a circuit that is crippled right out of the > gate. > Yes, this is what I found last weekend and then I found the one I just sent you >a pictorial on.( the one from U tube) It looks to be very similar, but has a >little design change. Hoping it pans out. Thanks Bob. > Dan > > Bob . . . > > > > > ________________________________ Message 2 _____________________________________ Time: 05:00:30 AM PST US From: John Morgensen Subject: Re: AeroElectric-List: Autocad on the web Thanks, all. john On 4/12/2011 6:23 PM, Robert L. Nuckolls, III wrote: > > > >> >> If you need to do a quick drawing and know what you are doing, then >> this is certainly a quick solution. >> >> Dick Tasker > > Agree on all points . . . > > I fiddled with it a bit and became quickly frustrated with > the latencies associated with remotely accessed applications. > We've go 3meg down/.7meg up connectivity here. > > For somebody starting out to learn a cad system, > there are some much faster ways to go for $50 down > to even free. TurboCAD opens, edits, prints and saves > all the AutoCAD files on the 'Connection website. > You can get where you want to go MUCH faster by modifying > an existing drawing than starting from scratch. > > > Bob . . . ________________________________ Message 3 _____________________________________ Time: 06:02:29 AM PST US From: "ROGER & JEAN CURTIS" Subject: RE: AeroElectric-List: Autocad on the web > >If you need to do a quick drawing and know what you are doing, then >this is certainly a quick solution. > >Dick Tasker Agree on all points . . . I fiddled with it a bit and became quickly frustrated with the latencies associated with remotely accessed applications. We've go 3meg down/.7meg up connectivity here. Bob . . . For $13.00 on Ebay, this is a very good basic package, with a lot of capability to open and edit cad files from Autocad and others. http://cgi.ebay.com/TurboCAD-Deluxe-10-PC-New-Box-Big-Manual-/20059755077 5?p t=LH_DefaultDomain_0&hash=item2eb48bb6b7 Roger ________________________________ Message 4 _____________________________________ Time: 08:46:59 AM PST US From: "MikeRV6-A" Subject: Re: AeroElectric-List: coil tuning anyone? For very comprehensive information about metal detectors, take a look at www.geotech1.com. You will find very extensive pursuit of the subject, and projects that are examples of good work. Mike Linse RV-6A builder- Corvallis, OR > > > > ----- Original Message ---- >> From: "Robert L. Nuckolls, III" >> To: aeroelectric-list@matronics.com >> Sent: Tue, April 12, 2011 6:45:29 PM >> Subject: Re: AeroElectric-List: coil tuning anyone? >> >> >> >> >> > If you have any suggestions on >> > what might make the following project work better, I'm all ears. >> > http://www.easytreasure.co.uk/bfo.htm >> >> I just reviewed this schematic again with some >> attention to the audio section . . . the >> thing has serious design flaws. We were >> focused on the oscillators and I didn't really >> do any kind of sanity check on the rest of it. >> The guy who designed this obviously had little >> knowledge of how to build stable, multi-stage >> amplifiers from transistors. >> >> You may be trying to build and troubleshoot >> a circuit that is crippled right out of the >> gate. >> Yes, this is what I found last weekend and then I found the one I just >> sent you >>a pictorial on.( the one from U tube) It looks to be very similar, but >> has a >>little design change. Hoping it pans out. Thanks Bob. >> > Dan >> >> Bob . . . >> >> >> >> >> > > ________________________________ Message 5 _____________________________________ Time: 09:46:33 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: AEC9004 At 06:01 PM 4/9/2011, you wrote: >Bob - how's it coming? Two years after revision 12 hit the press, >we're still waiting :-) I know we can soldier on with the >interim drawing, but wondered if the IR alternator controller was >ready to be born. Good question. When the 9004 was conceived, I still had access to some alternators mounted on drive stands and the preliminary work suggested the idea was worth developing. I acquired my own drive stand. http://aeroelectric.com/Pictures/Alternator_Test_Stand/Alternator_Test_Stand_1.jpg and started to modify it for development of an aircraft electrical system and install it in my shop. Even acquired the single-phase to-three-phase converter and got a 60A 240 line run out to the garage. Then I moved to M.L. The fat wire 240 line is 130 feet away . . . and taxations on my time took a quantum jump by the unintended acquisition of too much rental property (houses we intended to sell the same time the housing market was diving off the cliff). So now, I have this big machine sitting in my garage and more man-hours away from a utilitarian state than before. Plan C . . . or is it D? I forget. The 9024 is going to be done first. I'm going to convert the electrical system in my '87 Jimmy to look like Z-11. I'll install a suite of 9024's in the truck to make sure I'm satisfied with the way they work. When that's done, the truck will become the test bed for the 9004. I've got to pick up the drive stand for a third time and haul it back to the project's benefactor who requested that I return it when I was finished with it. In the mean time, the pressure is off on perfecting the 9004. Many of you will recall my visit to MPA's overhaul shops and development labs a few years back. (See chapter 3, in 12th edition 'Connections.) I witnessed some spectacular demonstrations of five, max-temperature, max-rating load-dumps in a row on exemplar alternators. The engineer in charge asserted that any alternator builder worthy of the name puts out a product that is not vulnerable to the occasional b-lead disconnect. I've concluded that all the floobydust thrown into the air about AeroElectric crowbar systems being the kiss of death to otherwise 'perfectly good' alternators had more to do with throwing sand than with a sharing of useful information. Bob . . . ________________________________ Message 6 _____________________________________ Time: 10:56:02 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: coil tuning anyone? At 11:42 AM 4/13/2011, you wrote: > >For very comprehensive information about metal detectors, >take a look at www.geotech1.com. You will find very >extensive pursuit of the subject, and projects that >are examples of good work. Cool resource Mike, thanks! Bob . . . ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-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/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-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.