[T-Man]

Yeah, I found a project at the train show. It has a speaker and a sound board. It's an 1130 tender with Pennsylvania markings. The back says made by Lionel with 8060T marking. The production is 1978 to1982 about. I found the print in the Lionel section 1-9 . The board is 8142T-35 The tender body is an 8141-8 or 8203t-8.

I'm asking what engine went with it.
What does the sound board do? Make a chug?Whistle? or play something that is feed to it?
A circuit diagram would make my day.
I will post pictures of my new dilemma. Coming soon.

 

[T-Man]

Saved

I saved myself. The set is from the 70's.
It's a chugger board. The engine is 8141 like the part number. Found the set on E bay. Glad they don't charge for the information.

 

[T-Man]

All set

I found the diagram too and tested the board. So here is my newest video. I left the radio on in the workshed but just listen. It probably hasn't worked in thirty years.

The switch is a cam on the engine and it jumps a 220k ohm resistor make beautiful music. I used my hand and some clips. Originally powered off AC track.

 

[Boston&Maine]

Is that supposed to be a locomotive "chug" sound?

 

[T-Man]

Yeah, maybe it's the sound distortion of the camera. I had to film with my left hand . The camera was upside down. The technology preceeds your birth. Plus I really haven't heard too much rail sound.

 

[ChopperCharles]

Hrm, any chance you can read the values off of the transistors so a guy might be able to duplicate this sucker? Also are all the caps electrolytic or are there ceramic disc caps in there as well? Thanks!

Charles.

 

[T-Man]

The blue Peter Thorne book has the information or you can find one at a train show. A tag search for sound of sream will give you two more threads to read . Ceramic caps are all the smaller values.

 

[gunrunnerjohn]

Hrm, any chance you can read the values off of the transistors so a guy might be able to duplicate this sucker? Also are all the caps electrolytic or are there ceramic disc caps in there as well? Thanks!

Charles.

I suspect you could get away with almost any small signal transistor for those. I'd probably start with 2N2222A for the NPN transistors and the 2N2907 for the PNP one to start.

 

[ChopperCharles]

Yeah, this circuit might be simple and dumb, but it sounds pretty good from the video, and it would be easy to add this to the cheap 21160 I picked up for $15 off of eBay. it still won't have smoke, but when I'm done with it, it will have sound and a headlight and a digital e-unit.

Charles.

 

[gunrunnerjohn]

You need a chuff switch to actuate the SOS board. You could do the reed switch trick on a tender wheel with a small magnet to do it. The actual SOS trainsets had a wire from the locomotive and a chuff switch activated by the same linkage as they use for smoke.

 

[BigAl56]

It's an old fashioned, "sound of steam" circuit board. The crude transistor circuit created electronic static one could imagine as a steam chuff sound. Over time the capacitors will fail. If the board no longer sounds right replace the capacitors.

Long obsolete with no replacements, repairing this board would have to be a labor of love for a hobbiest. Good luck and enjoy.

 

[ChopperCharles]

Yes, I've seen the reed switch thing before, that was my plan!

Charles.

 

[ChopperCharles]

areizman, I don't plan to repair one. I plan to build one from scratch.

Charles.

 

[T-Man]

The article is small but it has the diagram which is shown.No part list was given. I can show the board again for parts clarification. All the resistor values are on the diagram.

 

[ChopperCharles]

I said "transistor", not resistor But I will try gunrunnerjohn's suggestions.

Charles.

 

[NIMT]

ChopperCharles, You know you can get a digital sound chip that is recordable for about $2.50, With control inputs to trigger the sound!
I love nastalgic items like old O and S trains but if your going to kit bash go all out!

 

[ChopperCharles]

No, I did not know that. Is there a kit somewhere? I'm finding DCC solutions that cost out the ***, or a whole lot of nothing. This looked like the first reasonably priced sound option - under $20 in parts. I don't want command control. I like my AC setup. I just want to add sound - chuff and a whistle. I can scrounge whistle tenders on ebay, so that's something.

Charles.

 

[gunrunnerjohn]

ChopperCharles, You know you can get a digital sound chip that is recordable for about $2.50, With control inputs to trigger the sound!
I love nastalgic items like old O and S trains but if your going to kit bash go all out!

An actual part number and a source would be handy here.

 

[NIMT]

I find them on ebay all the time...I'll look.

 

[gunrunnerjohn]

I haven't noticed those, they would be handy for a couple of things here. Gosh, I might consider seeing if I could come up with a compact board to add whistle/bell to TMCC locos where you can't fit the full RailSounds set in them.