you are correct, however.....
Like I said in a previous post, there's no need to do that...
Just by pass the controller altogether by grounding the motor's neg terminal....
Horses and water springs to mind.........Ignore my experience and knowledge if you want...
Zipsnipe,
The output stage is either open collector transistor or open drain if its a mosfet...either way, the motor will be connected:
Motor positive to the main supply rail positive and the motor neg to the collector/drain...
Easiset way to make the motor spin faster on return to start...
Mosfets are voltage driven devices not current like a transistor that has Hfe...
Like I said before, if the current is limted to 5 amps as the seller claims, then there must be a way in which it does this via a sensing network...Else if the mosfet is driven from the 555 then there isnt really...
After a long absence since the board changes some while back, I've finally managed to get through the door.......
So Hi to everyone that knows me from before and Hi to all that dont...;)
ZS,
Those two devices you list, one is a mosfet ( first one) the other device is just a plain old 12 v regulator..
If the speed controller is rated for 5 amps then changing the mosfet device isnt going to help, the speedo is probably designed for 5 amps and is done with selective...
It's an induction motor with a start and run capacitor so it doesnt have brushes....
You could try stripping the motor and checking the centrifugal switch that switches out the start cap...
I'd be surprised if both caps have failed at the same time but you never know....
Check the switch and...
I have two IMO iDrive variable speed control units for sale.
These are second hand units that are fully functional and in excellent cosmetic condition.
They are ideally suited for converting your lathe or mill and has a 1hp rating. It takes standard ac 240v mains and outputs 3 phase 220v...
Arnak,
Try Joe at Maccmodels.co.uk He does 3 in steel diameters by the inch via mail order.
Service is pretty good..
Usual disclaimer, just a satisfied customer
Slightly off topic-
George, sory to hear you lost a friend....
Yes it is a T6, it belongs to the Warbirds museum at Kissimee Fla.
I went up in it as a treat for myself for my 50th birthday, Sean the instructor is a great guy who also flies at Reno with a self build....
Off to cut some pink...
George, Try your local r/c model shop for foam friendly cyano...
Nice job btw.... :)
Might have a go at one myself..I have a nice slab of pink foam in the garage that would do just fine for the rotor.