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Thank you Bob.

The owner of the airplane was able to follow your advice and narrow the problem to the voltage regulator. All is well now with a new part installled.

Regards
Randy

At 09:27 PM 3/14/2020, you wrote:
--> AeroElectric-List message posted by: "Randy C-GRPY" <rpulis>

I have a friend with a 1946 Swift that is having generator issues. It isn’ ...

I have a friend with a 1946 Swift that is having generator issues. It isn’t charging the battery. Are there some easy checks that can be done to try and narrow down the search for the issue ie: vol ...

Beware of counterfeit semiconductors on EBay...

On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY <rpulis> wrote:

--> AeroElectric-List message posted by: "Randy C-GRPY" ...

Most of the diodes discussed above will drop about 0.5 volts at 10 amps.
The power loss will be 0.5 x 10 = 5 watts. That will produce lots of heat.
Have you ever touched a 3 watt incandescent night ...

Thanks fellas for chiming in. I'm on the steep part of the learning curve. I was thinking about using the DSS2X61-0045A although I'm still planning on browsing for less expensive alternatives that w ...

On Sat, Feb 22, 2020 at 11:14 AM Randy C-GRPY <rpulis> wrote:

--> AeroElectric-List message posted by: "Randy C-GRPY" <rpulis>

I want dual diodes to feed alternate pow ...

Randy,

See if this meets your specs...

--> AeroElectric-List message posted by: "Randy C-GRPY" <rpulis>

I want dual diodes to feed alternate power to critical compone ...

I want dual diodes to feed alternate power to critical components with only one power input. The ones sold by Perihelion Designs seem to fit the bill well but are quite pricey. Are they worth the cos ...

Mount 40 amp automotive relays (B&C S8009-1) within 3" of battery positive
posts. Connect 14 AWG between battery positive and relay. This 14 AWG
wire will serve as a fuselink. No fuses ...

3. A dual bus fed diode protected engine or injector bus violates the very “pure” separation that exists in Z-14, but as of right now - there are no dual power source alternatives of which I a ...

...I'd also cycle the ECU select between 1,2, and both... I would expect that if a relay or an ECU were unservicable that it would show up with those checks. Do you have a different opinion John?

H ...

Mount 40 amp automotive relays (B&C S8009-1) within 3" of battery positive
posts. Connect 14 AWG between battery positive and relay. This 14 AWG
wire will serve as a fuselink. No fuses ...

Initially I had those wires going to a breaker which I think would essentially accomplish what you suggest. I liked the idea of actually seeing that there is a problem by witnessing the tripped br ...

Yes, I understand that it wasn't fused with a big enough breaker/fuse. Bob did another video in that series though that poo pooed that design even with properly sized fuses. I didn't understand why ...

Good day Bob.

I watched your videos with great interest related to that accident report. It was my understanding that the diode on the the feed between the two sides was what led to the current h ...

On 1/31/2020 4:03 PM, Randy C-GRPY wrote:

user9253 wrote:
> The ANL fuse on the downstream side of the aux contactor could blow if the aux battery is used to crank the engine.

Ahhhh.. ...

Thanks Bob. This simplifies things a lot with respect to wiring my aircraft.

What I am understanding is that any of the fat wires, properly sized and installed on the switched side of the contact ...

SDS's schematic....

Hi Randy,

Some thoughts:

The SDS schematic leaves out a lot of details.
The ECU select switch is SPDT.
Since the ECUs are unswitched I don't understand how the crew ...

Any other suggestions as to how to provide redundant power to all 6 fuel injectors?

Thanks much!
This is figure Z-14 . . . both main and
aux busses are already quad redundant
with v ...