Railking SW1500 speaker

Did u ever get the flywheel motors to clear?  I believe I used a Williams NW2 as a donor to power a Dummy SW1500.

https://ogrforum.com/...7#118977936480550667

I've got the motors installed, and they do clear the hood. Now I need the speaker...........

Try Dallee or Digi-Key

Bruce

I believe that's a 45mm speaker, the closest I could come is an 8 ohm 45mm speaker or a 4 ohm 40mm speaker.  I used the 40mm speaker in one for a friend, worked just fine.

Thanks for the replies. GunrunnerJohn, was the speaker you used a flat speaker?

Barry

Yep, flat as a pancake.  There isn't much room under there.  I just picked up a few flat speakers from AliExpress, 40mm and 45mm, some 4 ohm and some 8 ohm.

Thanks for the info John. Do I need to stick with a 4 ohm speaker with a 3 volt board? Would an 8 ohm speaker work with a 3 volt without causing problems?

Barry

Higher impedance speakers work fine, they'll just be lower volume.  My old SW1500 has a 16 ohm speaker still in it, at the time I couldn't find any 4 ohm 45mm flat speakers either.  At some point I'll get off my duff and put a new speaker in it, that will help it's volume.

Thanks for the help. I appreciate it.......................

Barry

This speaker was available from Atlas, used in their SW series.   8 ohm.  ?? 1 watt ??   Some of the Dallee offering ?? 2 watt??

Given the number of times I've had to take an Atlas engine apart and replace that speaker, I don't think I'd be that enamored with selecting that one.

I found some 2W ones on AliExpress.

With my fleet, I have replaced several Atlas speaker with Atlas replacement parts.   I have not had a failure of the replacements.  One problem that exist, when first addressed, an engine comes on at full sound.    IMO, not so good for a speaker, but apparently the way it is programmed.  Can that be fixed, John. ??? 

The old RS4 boards come up at full volume, no fix that I can think of.  Of course, you have the manual volume to set the volume, that affects conventional and command.