Today's Message Index:
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1. 06:50 AM - Terminal ID? (donjohnston)
2. 08:16 AM - Re: Terminal ID? (Kelly McMullen)
3. 12:42 PM - De-Slumpifier, Voltage Buffer to Prevent Brownout (Eric M. Jones)
4. 04:12 PM - Alternator Whine in Radio Transmit (Ron Lendon)
Message 1
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I'm hooking up the the CHT/EGT probes to my Grand Rapids EIS. I had a couple bad
crimps on the male spade connectors but I didn't have enough spares. GR sent
me some extras but they changed to a different style and those don't work in
my AMP 47386-R crimping tool.
I've poked around on Mouser, but all I can find are ring and butt splice. No luck
on tabs.
Any suggestions on a PN?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408229#408229
Attachments:
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Message 2
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Subject: | Re: Terminal ID? |
Probes do seem to have varying connectors. Those for EI probes have a
bit of a bump in the middle but both male and female are fast-on fully
insulated.
On Dynon the insulation is rounder, and the male spades do not have
insulation over the spade, just the crimp area. I have had some luck
matching up what I needed for extras at either Radio Shack or Home
Depot, just being careful to only select ones with translucent nylon
insulation, not opaque vinyl.
Haven't run into ones that don't use same crimp as any other ring or
fast-on terminal. Seems odd that they would supply a connector that
doesn't use a standard crimp.
On 9/8/2013 6:49 AM, donjohnston wrote:
>
> I'm hooking up the the CHT/EGT probes to my Grand Rapids EIS. I had a couple
bad crimps on the male spade connectors but I didn't have enough spares. GR sent
me some extras but they changed to a different style and those don't work in
my AMP 47386-R crimping tool.
>
> I've poked around on Mouser, but all I can find are ring and butt splice. No
luck on tabs.
>
> Any suggestions on a PN?
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=408229#408229
>
>
> Attachments:
>
> http://forums.matronics.com//files/569a_158.jpg
>
>
Message 3
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Subject: | De-Slumpifier, Voltage Buffer to Prevent Brownout |
I built and tested the 12V De-Slumpifier and it behaves very well with no surprises.
I don't have a publishable test protocol, but for general purposes this
is a good design that can be used for many anti-slump applications. If there is
sufficient interest, I will make a PCB and maybe a kit of parts.
Note how much space remains inside the box. The 35W resistor and heatsink and one
diode is under the perf board.
I added an optional LED indicator. The supercaps behave almost exactly like a 250,000
uF/20V capacitor bank which used to fit into a suitcase.
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408239#408239
Attachments:
http://forums.matronics.com//files/slumpless_12v_buffer_136.pdf
http://forums.matronics.com//files/p1000038_899.jpg
http://forums.matronics.com//files/p1000037_104.jpg
Message 4
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Subject: | Alternator Whine in Radio Transmit |
Bob,
I have the WW Corvair engine in a 601XLB and have 180 hours on it. I used your
design with the JD alternator and replaced the voltage regulator/rectifier with
the B&C unit "PMR1C-14". At about 170 hours the filter cap 10,000uF gave up
and the ATC folks started to complain.
I have replaced the Cap and now that I know about the whine I find I can switch
off the alternator during transmit and it is as clear as a bell. With the alternator
switched on it does have a whine that is tolerable, but it still has
a whine.
What steps can I take to eliminate the whine from the alternator and leave it switched
on?
Be gentle, I'm a metal worker not an electrician.
--------
Ron Lendon, Detroit, MI
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
http://www.zenith.aero/profile/RonLendon
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408242#408242
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