Today's Message Index:
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1. 08:02 AM - Slickstart - Magneto booster ()
2. 09:46 AM - Re: Slickstart - Magneto booster (Robert L. Nuckolls, III)
3. 10:33 AM - Re: Slickstart - Magneto booster ()
4. 10:38 AM - Re: Dual Power Inputs, Dual Buss Electrical System (Bill Watson)
5. 11:32 AM - Re: Dual Power Inputs, Dual Buss Electrical System (Robert L. Nuckolls, III)
6. 09:28 PM - Re: Constructing an automatic RCA video camera feed splitter (Eric Page)
Message 1
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Subject: | Slickstart - Magneto booster |
Hello all,
I recently bought a used Slickstart magneto booster on e-bay and am not sure
to how to test it?
Any ideas?
Thanks
Mike
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Subject: | Re: Slickstart - Magneto booster |
At 10:00 AM 10/13/2017, you wrote:
>Hello all,
>
>I recently bought a used Slickstart magneto booster on e-bay and am
>not sure to how to test it?
>
>Any ideas?
>
>Thanks
>
>Mike
See http://tinyurl.com/ycbhqael
Bob . . .
Message 3
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Subject: | Slickstart - Magneto booster |
Thanks Bob,
Much appreciated
Mike
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L.
Nuckolls, III
Sent: October 13, 2017 9:46 AM
Subject: Re: AeroElectric-List: Slickstart - Magneto booster
At 10:00 AM 10/13/2017, you wrote:
Hello all,
I recently bought a used Slickstart magneto booster on e-bay and am not sure
to how to test it?
Any ideas?
Thanks
Mike
See http://tinyurl.com/ycbhqael
Bob . . .
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Message 4
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Subject: | Re: Dual Power Inputs, Dual Buss Electrical System |
On 10/12/2017 2:46 PM, Robert L. Nuckolls, III wrote:
>
> Post Script: Replacing the starter eliminated all problems with cross
> fed and single battery starts. Returning to a single power supply on
> a single bus for each GRT gave me back the battery management
> flexibility.
>
> Bill "I love my Z-14" Watson
>
>
> Bill mentions a starter replacement . . . what
> kind of starter was removed and what was
> the replacement?
>
The starter that was removed was the Sky-Tec 149-12LS Flyweight Starter.
I replaced it with the Sky-Tec 149NL.
The LS came as the standard configuration of the Lycoming IO-540 for
the RV10 one could order through Vans back around 2009. People in the
RV10 community quickly determined this was not a good combination. Even
with 2 fully charged 680s, the starter would not consistently turn
through the first compression stroke when cold - one had to learn to
'bounce it' through the first compression stroke. This was SOP on cold
days but it never actually failed to start the engine. And it routinely
caused my (3) unswitched EFISs to reboot if I had both buses crossfed,
even if it did pull through the first compression stroke.
Lycoming and Sky-Tech came to the same conclusion at the time and
specifically recommended that the LS is not a good starter for this
application. For a period of time both companies were taking exchanges
of the the LS for the NL at no charge. (Sky Tec now offers an XLT model
as an updated replacement for the LS. Some RV10 builders used the HT
model but reported similar problems.)
When I replaced it with the NL, it was immediately apparent that the NL
turned slower but with much greater 'authority'. Even starting on one
battery, switched so that it ran on the same bus as the (3) EFISs, the
EFISs didn't reboot. Starts are now a no-brainer.
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Message 5
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Subject: | Re: Dual Power Inputs, Dual Buss Electrical System |
At 12:36 PM 10/13/2017, you wrote:
>On 10/12/2017 2:46 PM, Robert L. Nuckolls, III wrote:
>>
>>Post Script: Replacing the starter eliminated all problems with
>>cross fed and single battery starts. Returning to a single power
>>supply on a single bus for each GRT gave me back the battery
>>management flexibility.
>>
>>Bill "I love my Z-14" Watson
>>
>>
>> Bill mentions a starter replacement . . . what
>> kind of starter was removed and what was
>> the replacement?
>>
>The starter that was removed was the Sky-Tec 149-12LS Flyweight Starter.
>I replaced it with the Sky-Tec 149NL.
>
>The LS came as the standard configuration of the Lycoming IO-540
>for the RV10 one could order through Vans back around 2009. People
>in the RV10 community quickly determined this was not a good
>combination. Even with 2 fully charged 680s, the starter would not
>consistently turn through the first compression stroke when cold -
>one had to learn to 'bounce it' through the first compression
>stroke. This was SOP on cold days but it never actually failed to
>start the engine. And it routinely caused my (3) unswitched EFISs
>to reboot if I had both buses crossfed, even if it did pull through
>the first compression stroke.
>
>Lycoming and Sky-Tech came to the same conclusion at the time and
>specifically recommended that the LS is not a good starter for this
>application. For a period of time both companies were taking
>exchanges of the the LS for the NL at no charge. (Sky Tec now
>offers an XLT model as an updated replacement for the LS. Some RV10
>builders used the HT model but reported similar problems.)
>
>When I replaced it with the NL, it was immediately apparent that the
>NL turned slower but with much greater 'authority'. Even starting
>on one battery, switched so that it ran on the same bus as the (3)
>EFISs, the EFISs didn't reboot. Starts are now a no-brainer.
thanks for the data dump!
Bob . . .
Message 6
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Subject: | Re: Constructing an automatic RCA video camera feed |
splitter
I know Wade's specific request for camera switching has been solved, but it sounded
like the sort of thing that might come up again so I thought I'd take a stab
at it.
So... here's an alternative for switching cameras to a monitor or EFIS input using
a couple of voltage regulators and three ICs. All components are through-hole.
Everything on a single PCB, and no relays.
Reference the attached schematic:
An LM2931 5V linear regulator and a TC7660 charge pump provide +/-5V rails to power
the circuit. A 555 timer is configured in astable mode to provide an output
with adjustable period of about 3 to 10 seconds. This output is fed to the
clock input of a CD4022B octal counter. The clock signal can be interrupted
by a SP3T ON-ON-(ON) switch to stop rotation of the cameras or advance them manually.
Outputs 1-3 of the counter are connected to the logic inputs of an AD8184
4:1 video multiplexer such that they cause the multiplexer to cycle through
its four video inputs, connecting each in turn to the output. RCA connectors
provide four camera inputs and one video output.
LM2931AZ 5V Linear Regulator: http://preview.tinyurl.com/yakjxubl
TC7660CPA Inverting Charge Pump: http://preview.tinyurl.com/y7n7g6um
ICM7555IPAZ CMOS Timer: http://preview.tinyurl.com/ybrvnnq2
CD4022BE Octal Counter: http://preview.tinyurl.com/ycjsa46w
AD8184ANZ 4:1 Video Multiplexer: http://preview.tinyurl.com/ybozz2nf
SP3T Toggle Switch: http://preview.tinyurl.com/ybpazcu5
Critiques? Suggestions?
If there's any interest, I can gin up a PCB.
Eric
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473514#473514
Attachments:
http://forums.matronics.com//files/4_ch_vid_cam_mux_rev_a_459.pdf
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