If he's gonna get a 5v or 6v fan, I'd just hook it to the AUX output of the Rx or use a Y harness off the Rx pack - no need for any diodes or resistors then. This would be by far the easiest solution. It's the dual speed thing that is making things more complex. Also, if he had a fan and had it running at its rated voltage, it would spin at a reasonable rate and wouldn't need a hi/lo speed switch.

BTW: Fans don't need resistors (are you thinking of LEDs?) The diodes will simply drop enough voltage so the fan doesn't spin so fast since he's running 16.8v to a 12v fan. At any rate, the fans internal circuitry only pulls what current is required, so no resistor is needed to limit it.

Wasn't sure. It would be the same as plugging the fan right into the batt pack, not sure I'd want to just do that w/o testing 1st far away from my esc..

Nope, that's perfectly fine as long as the current draw of the fan and the servos total is not more than the BEC, Rx pack, wiring, or switches can take (~3A). Mopst small fans are well under 1/4A so no worries there. Adding a resistor to the fan would be like adding a resistor to a servo - totally uneccessary.

I haven't recieved a reply yet to my E-Mail to Mike. Could someone tell me an average reply time for Mike? I'm kinda nervous, because this is a matter of life and death for my E-Maxx:013:, but I'm not asking him to hurry up or anything. I've never E-Mailed him before, so I wouldn't know how long it takes him to reply. He must get a lot of E-Mails each week, and that would be very difficult to deal with.

Thanx,
Brijar!!!

How many have you sent? Sometime it takes another email. I think reason being is because some of his emails might get filtered or sent to a junk mail folder. Try and send him another. He usually replies within hours.

In the past, some of my emails too had been filtered or otherwise lost when sent just to the RCM address. Try the two addresses below:

rcmonstermike@gmail.com
mike@rc-monster.com

The Gmail one is the main one he uses. Try that one.

Well I sent the ESC to him a bit more than a month ago and exchanged a few E-mails with him. He says it should be fixable for a lot less than the cost of a new one, but he hasn't been able to get it to do anything so far. I E-mailed him a couple days ago to check up on the progress, but he hasn't e-mailed back yet. I'm pretty sure it'll have to be sent to BK for repair, but Mike may yet pull something out of his hat. I'm hoping it won't cost more than $100:013:.
Do you think I should re-e-mail him or give him a few more days? Does anyone know if there is a big event going on that he would be too busy to reply?

If you read on the homepage, he's out of town.

He'll probably get back to you the 13th or 14th would be my guess.