Williams F Unit Cab #4051

You can use any electronic E unit including the newer ones from Williams, Lionel, or Dallee.

Pete

Whow about a picture? Don

Have photo but can't seem to cut and paste to here

Looks like a lot of rewiring involved with the DAllee, Which one?  

First test the amp draw on the motor, then get a board to handle it.   Motor supply / choice was an issue for Williams in the 70s-80s. I'm not sure how long it took him to crawl out of that confinement after my Gramps passed. He did a lot of testing, logging, and personal opinion review for him.  I never saw boards, too early.  But the first ac/dc rectifier I ever saw was on the frame of a brass prototype casting by Williams (an E or F... I think F) and it's twin with another brand motor. 1 pittman and one....? it was a windshield wiper motor readily available is all I recall.  The pittman ran hot as heck, but well. We added a heat sink. Better, still hot. And the other had a high amp draw, low speed, high torque. Kinda too slow for those used to postwar Lionels.

All Williams engines have DC motors. They all use electronic E units. The design has changed over the years but they are all interchangable. Upgrading to command control is an option. I wasn't aware that Williams made F units until the 2000s. I have never seen a Pittman in a Williams. All the ones I have seen were Mabuchis, either 550s or 385s.

Pete

This engine is pre-merger with Bachmann. 

Nicholas Smith has replacement boards for Williams locos.  Trainworld does, too.  Pretty sure they come with harnesses and reverse lock switch, as well.  That would be a nice upgrade for an older engine.  They also carry the sound systems for Williams.

That is a '90s engine. The later ones have flywheels and the E unit is a bit smaller. You can still use the E unit Bachman offers today. You can post in the wanted to buy forum for an E unit. Folks who do upgrades are likely to have some.

Pete

How did I miss THAT, lol.  I don't recall a photo.

Oh wait...only one photo now and after my post..... loading glitch.

@Norton posted:

All Williams engines have DC motors. They all use electronic E units. The design has changed over the years but they are all interchangable. Upgrading to command control is an option. I wasn't aware that Williams made F units until the 2000s. I have never seen a Pittman in a Williams. All the ones I have seen were Mabuchis, either 550s or 385s.

Pete

I bet you never saw a Williams ABBA permanently coupled either. At least one exists.   There were 99% percent brass

I want to thank everyone for the advice I am happy to say that this morning I found a board that will work here locally and will be installing it this afternoon.  Thanks again