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I have an older railking Challenger, 30-1194-1.  The sound is getting garbled so I figure it needs a new speaker.  The MTH website says the part is BF-0000007 but is no longer available.

 

the description is "Speaker(50.0mmspeaker) BF-0000007 $8.95 (STAR)(PR-050-A111)(16ohms)(MAX2W)"

 

I have not purchased speakers for electronics before.  Any idea where to get a replacement and if there is anything special I need to know to install a replacement? (Also never installed a speaker that wasn't part of a kit so feel free to provide rookie level pointers!)

 

Thanks in advance to anyone who can assist,

 

John Z.

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ChiTown Steve posted:

I've used this one with good results. Last summer I replaced every speaker in every engine. Much clearer sound in all of them. 

 

http://www.parts-express.com/2...amp;utm_campaign=pla

I started looking online last night.  I saw this one but at less than a dollar I was a little worried about "getting what I paid for" type of quality.  Thanks for letting me know you have used it successfully already.

JZ

Started trading email with Midge. She asked for a picture and I am glad she did.

The installed speaker is not the same as what the BOM said it was. 

The best I can tell it is still a Star, but I can't tell if the first letter is a F or a P, but it looks like FR-050-A1421. What is clear is that a 16 ohm, 5 watt speaker, not 2 watt as called out.  

Also some of the coating around the diameter of the magnet has frayed. I don't know if this is cosmetic or related to the garbled sound.IMG_0282IMG_0284image

By the way is there supposed to be a cover over this ?

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Not being too adventurous, I ordered an in- kind speaker replacement from ggg.  I don't know if speaker magnets lose strength over time, but the new one definitely had a stronger magnet!  Here's a side by side with the new one installed.

IMG_0299

And since we are dealing with a speaker replacement here's an obligatory how-does-it-sound? clip.

This was with the sound turned way down.

As long as the tender was open she got a replacement battery.  Next up is some lube for the gears, four new traction tires and she'll be good to go for another million miles��

(edit - in all honesty at first it was dead quite, and I thought I somehow fried the new speaker while soldering the leads.  That's when I remembered it was still unplugged inside the shell!)

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Last edited by jhz563
gunrunnerjohn posted:
GGG posted:

 I did find out that the manufacture is no longer making that speaker with reasonable minimum orders and MTH is looking for an alternative.  G

Given the performance of the speaker, that may be a blessing in disguise!

Not the same OEM as the original. So no blessing. G

gunrunnerjohn posted:
Train Doctor posted:

One source is Moyer Electronics in Pottsville PA. They have a website, if you want their phone number my email is in my profile.

I hope they keep the inventory more up to date than their free software page.  An example...

Windows 98?  The newest O/S on there is XP!

Xp being listed is probably the least thing wrong.  VCR's, turntables, and answering machines have all been outlived by toy trains!  In all seriousness I did notice when I initially started looking for parts that the mth and supporting documentation seemed to be seriously out of date.

Can I revive this topic? I have a chessie steamer ( round charging port ie: 5 V? )  with the same MTH star spkr shown above....same flaking spker,same crappy spkr. Ordered one from the bay" (a link that I got from GRJ awhile back..but things change with time)  a "PS2 MTH  steam replacement spkr" Got it in...nothing like the old one except it looks like it could fit,,,same diameter. New one is 8 ohm 2 w with REAL small magnet, old one is 16 ohm 5 watt and a huge magnet for a 2" spkr.  I will check a couple of links above...but, since this topic is from 2017 I wondered if anyone had a better source here, not what it is nearly 2024!! Thanks for any and all feed back. Gotta run and try to return a speaker that is not right to a seller that has a "no returns" policy!  See attached picts new spkrold spkrGreg

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@cngw posted:

Can I revive this topic? I have a chessie steamer ( round charging port ie: 5 V? )  with the same MTH star spkr shown above....same flaking spker,same crappy spkr. Ordered one from the bay" (a link that I got from GRJ awhile back..but things change with time)  a "PS2 MTH  steam replacement spkr" Got it in...nothing like the old one except it looks like it could fit,,,same diameter. New one is 8 ohm 2 w with REAL small magnet, old one is 16 ohm 5 watt and a huge magnet for a 2" spkr.  I will check a couple of links above...but, since this topic is from 2017 I wondered if anyone had a better source here, not what it is nearly 2024!! Thanks for any and all feed back. Gotta run and try to return a speaker that is not right to a seller that has a "no returns" policy!  See attached picts Greg

Let's cut straight to the chase. It's this simple, you have a PS2 5V because of the round charging port and 9V style rechargeable battery, which takes a 16 Ohm speaker.

If you install an 8 Ohm speaker or 4 Ohm, this loads the amplifier which is already probably near it's thermal limits without heatshink.

This is not something to mess around with if you want to get maximum life out of that semi fragile PS2 5V board. In other words, cannot recommend installing that new 8 Ohm speaker.

Last- the seller sold you something with a specification and possibly pictures. They can have the no return policy all they want- if you have evidence (example the pictures and marked rating) of your received speaker doesn't match the auction details and description- then you have every right to dispute. This is a cautionary tale for those selling- your description better be perfect or else you open yourself to liability. It is a buyer centered platform and you can get caught out as a seller if there are any mistakes or errors in your listing.

Yes, you need to have a 16 Ohm speaker load for the 5v PS2 boards. I test my speakers before installing them to ensure they have the correct resistance no matter what is printed on them. Many times I find a number 4 & 8 Ohm speakers are 3 and 7 Ohms respectively.

Vernon may disagree with me on this solution, in the past, I cheated on one of my 5V engines and used an 8 Ohm speaker but added an 8 Ohm resistor inline to dummy the load up to 16 Ohms. This will make the speaker quieter but not by much. I ran this on an old RK engine that didn't have much value so if I blew the board... not a big deal.  So far, 7 years and 225 hours of runtime later, it still runs & sounds like a champ.

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