I am wonndering if someone could help me. I have a G62 just converted to electronic ignition by RC Ignitions.. They included an RCA jack to plug into the the side of the engine. The directions stated to use a 4.6 to 6.0 volt batttery and connect the red to the center of the jack and the black to the outside. I guess I am thick! There only appears to be one wire going to the jack. I need to have a kill switch as well.
Thanks,
David
MOONEY20E

Call Ralph. He'll tell you how to hook it up.

If you shut off the battery the engine stops. All you need is an on/off switch in the battery lead.

He uses the RCA wire and terminal for the shielding, and simplicity. If you peel back the outer coating, you will find a shield and outer braid, this is your NEGATIVE wire. Then you will notice yet another insulating layer, and inside that, you will find the POSITIVE wire. Its not much different than Coaxial cable, if you have ever made your own leads at home for TV, VCRS...etc.

Strip them back and solder them to a spare servo HD servo extension, (outer layer to brown or negative, inner wire to red or positive) so you can plug it into a switch. Be sure to keep the wires separate once stripped, and cover them with heat shrink to protect from shorting. I usually use a heavy duty charge jack, similar to the one used for the RX pack, for charging and testing. With Ralph's ignition, I would recommend a 700mah 4.8v pack. There is no need to carry anything larger as it is a pretty efficient ignition system and needs nothing more.

Chad,
Thank you! Exactly the answers I needed. This is my first experience with electronic ignition on a finished airplane. I am putting a DA50 in my P-47 but I still have quite of bit to go on that plane before I worry about batteries etc. Should I cut the connector off the HD servo extension or solder to the pins on the connector?
Thanks,
David

...I prefer to cut the lead off, and solder wire to wire. You can cut the lead on the switch harness and just use that, direct to the RCA lead, but then that switch is setup for use with this ignition, and would need to be modified again to be used on others. I didn't have any 700 or so mah batteries around, so I used a 4.8v 1100mah battery that I already had on mine. The mah of the pack, over 700mah or so, just affects your all up weight, so going too far overboard isn't just pointless, but affecting the weight. It would be best to go over the mah a bit, if more convenient than to go up in volts. The excess voltage is shed in the form of heat. And though Ralph's circuit is robust, what is the point in wasting the energy, and adding heat to your electronics, potentially exhausting their lifespan earlier than necessary....

Good luck! Ralph does great work, and the G62 is a wonderful engine. I think you will be happy with your choice.