Can I use this FW Bridge Rectifier on my PS-1 loco?

RufusOGR Forum Member DIGITAL SUBSCRIBER

I was intending to use a 6 amp 50 volt bridge rectifier, but none available locally so bought this one in picture.

Do any of you know is I can use it to power my 4-6-4 MTH RK-1113LP as I am trying to get it to run in just

conventional mode, using none of the 'electronic boards (2) that it had when I purchased it years past.

If so, then do I run the + and - to the motor and those two prongs in the middle ... one to the pickup which

is insulated from the body and the other to the body which connect to wheels?

There is one more option for me and that would be to use a 8 amp 50 volt unit which can be obtained locally so

maybe that would be better?

And, is that all I need to do to make this motor run which is working BTW, as I tested it using a HO dc pack.

And just so some might ask, "why do I still ask for help on this problem?", I live in a somewhat remote part of

MS and can't always get to town and the nearest MTH repair center is 800 miles away.

Thanks, Guys!!

Attachments

Hide

Images (1)

3/14/168:58 AM

❤️ 1

Original Post

Replies sorted oldest to newest

stan2004OGR Forum Member

The 4A bridge installed as you say will work for light loads but I'd feel more confident with a higher rated bridge as you initially intended. If you are remotely located and already own the 4A, install it to mess with while waiting for something like this 10A bridge for 99 cents free shipping from Asia (ebay 291645788711).

In either case I recommend attaching the bridge to a piece of metal for heat-sinking. It appears your 4A bridge has a mounting hole (as does the 10A device) for this purpose.

Depending on what else you're running on your layout, since you already have a suitable DC power source, you could apply DC to the rails and directly attach the engine's motor to the track. This would allow you to reverse the engine which you won't be able to do with the bridge-only method.

Attachments

Hide

Images (1)

3/14/165:58 PM

❤️ 1

John DeAltoOGR Forum Member

Rufus,

I used them on my Layout and work good.

Never had any problems.

Good luck, JOHN

3/14/166:26 PM

❤️ 1

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

I think a 4A bridge should work fine. I can't imagine any single or dual motored loco needing 4 amps to the motors, typically it's far less, even at load. A larger bridge won't hurt anything, but I personally don't believe it's needed.

3/15/169:21 AM

❤️ 1

RufusOGR Forum Member DIGITAL SUBSCRIBER

Many Thanks to all who responded to my question. I will now try the one I have purchased and all should be fine.

As my layout consists of two mainline tracks, one inside the other and the inner having a wye, I do not run more

than one engine at a time (unless I use our Thomas remote to shunt unhooked freight) and try never to go over

15 vac, all should be fine, but I'll go 'easy' after the installation.

BTW....I do have a small heat sink which should be just perfect to mount that FWBR.

Hey ! All this stuff is fun, I find, just wish I could convince "PiP' that it is more fun than barking at Squirrels

and keeping all the cats in line but 'he's a dog' as my sweetie calls him.

Thanks again and is you are ever in the area look me up (i am in the phone directory via land line) and we'll

fine some fine, fun restaurant to gobble some vittles down and go watch the 9:30 KCS pass by.

3/15/164:33 PM

❤️ 0

Skip to main content

Attachments

Attachments

Add Reply

Membership Required

Remove From Your Block List

Manage Follow Preferences

Block

OGR Forum Supporting Membership Required

OGR Forum Supporting Membership

Help support this forum with an OGR Forum Supporting Membership.You will be able to watch the videos in the INSTRUCTIONAL VIDEO FORUM!A one-year OGR Forum Supporting Membership is only $12 per year, so sign up now!

OR

Access the ALL the OGR VIDEO FORUMS AND over 300 back issues of OGRwith a DIGITAL SUBSCRIPTION!

Please wait...

Help support this forum with an OGR Forum Supporting Membership.
You will be able to watch the videos in the INSTRUCTIONAL VIDEO FORUM!
A one-year OGR Forum Supporting Membership is only $12 per year, so sign up now!

Access the ALL the OGR VIDEO FORUMS AND over 300 back issues of OGR
with a DIGITAL SUBSCRIPTION!