Upgrade for the Allegheny

Here's a video of it from a few months ago with the old speaker and original sounds for comparison.

I like that whistle sound.

Nice job .

I've got to get on putting the whistle from my Premier PS3 ATSF Hudsons into my Premier PS2 3V ATSF Hudson. The whistle needs some compression to fit. I just haven't done it yet.

@rplst8 posted:

Great Job in the upgrade as the sound is excellent.  I give you guys who can manage these types of upgrades a lot of credit.

Great work man!...sounds like a keeper!....as far as your missing cat walks, PSC ........( Precision Scale Company) sells tread in sheets in various designs and thicknesses,....easy to make missing cat walks with a descent set of shop sheers, and a handy dandy belt sander,...( quick for trimming) ....or lay a piece of sand paper on a flat surface and file away,.....MTH used a glue that didn’t stand up to the test of time on the cat walks, and other trinkets adorned on the model,....be forewarned, build plates, and all the other catwalks are held on with that same glue,....when one piece falls off, attack the entire locomotive on your terms, to save yourself the grief of missing small items ,.....a lot of times if you sneeze near the build plates, they’ll fall off,.....

Pat

Sounds awesome! I was wondering how you decided on testing those speakers. Was it just looking up reviews? Or did you know something that helped you pick those speakers out?

@BillYo414 posted:

Sounds awesome! I was wondering how you decided on testing those speakers. Was it just looking up reviews? Or did you know something that helped you pick those speakers out?

I mainly went on the specifications published by the manufacturers and obviously limited it to things I thought would fit.  I also knew the original was a 4 ohm 3 watt driver, so i looked for candidates that were >= to those figures to avoid killing the amplifier on the PS2 board.

I also know enough about Thiele/Small parameters to help narrow the choices.  That said, the speaker that “won” wasn’t what I initially predicted.

I might experiment some more with creating rear baffles and using poly-fill to tighten up the low end response. I think if the electronics were minimized further and placed in the boiler, the whole tender could be used for a bandpass enclosure with a second driver for the high frequencies, and these little guys would really rock.

Ive also considered converting a box car to provide the lowend and rumble.  Since bass is more omni directional, I think it could work.

Some of these little Bluetooth speakers have great sound and are about the same size as a O scale box car, so I think it can be done.

Cool. That's good to know. I always liked acoustics but I never expected it to criss cross with model Railroading haha