can the old lionel f3 motors be used with the new electroic e units? If yes can you provide a wiring schematic. BigC.
Yes, sorry, no. But instructions are supplied with the unit upon purchase.
A visit to the Lionel website. Look at the supplemental down loads. page 15 of acrobatic reader supp 31. Under customer service ,and, parts and diagrams. This is the simple e unit. Have no idea if it works with the dual motors. This has the color codes to connect it up.
I assume the “old F3 motor” is AC. Most e-units are for DC motors. If your motor is AC, make sure the e-unit will handle an AC motor.
Earl
Older F3s would have universal motors, able to run on AC or DC. However, they cannot be reversed simply by reversing the polarity of the DC voltage.
If it should be necessary to use an electronic e-unit designed only for permanent-magnet DC “can” motors to run a universal motor, this can be done by wiring either the armature or the field (but not both) through a bridge rectifier. I have done this with a 623 switcher to simplify wiring its motor in series with anothe 623. (An electromechanical e-unit does the DC-polarity reversing in my case.)
The only concern with this scheme would be whether the electronic e-unit can deliver as much current as the older motor(s) will draw.
Bob,
What design feature makes the motor universal, able to run on AC or DC, rather then just a plain AC motor?
Earl
Any series-wound motor is insensitive to the polarity of the voltage, since the magnetic fields of the stator (“field”) and rotor (“armature”) alternate together. All that is needed for running with the rapid polarity reversals of the 60 hertz voltage that we use is to laminate the magnetic parts of the motor so that they block currents from circulating within them in response to the power-line alternation. This is easier to do with small motors. To increase efficiency, prototype locomotive motors use lower frequencies, 25 hertz in America, 16 2/3 hertz in Europe.