HOn30 brass locomotive kit re-released by Toma at the end of 2015 (first release in 1982).

Sandy River and Rangeley Lakes Railroad
S. R. & R. L. #18

Wikipedia: Built by Baldwin Locomotive Works in 1893 for Sandy River Railroad (No. 2) as a 2-6-0. Rebuilt in 1916 as 2-6-2. New tender built by Baldwin Locomotive Works in 1926. Scrapped 1936.

Maine Two Foot Gauge 2-6-2 Prairie Locomotives by Peter S. Barney

Chassis / Frame

The new kit includes a coreless DC motor from Namiki, Japan, I suppose type CMS10-1346 (data sheet)! The 1:24 reduction gear seems to be the same as the one used in the SangoDachshund kit. The motor is excellent but way too fast, about 28'000 rpm = 467 /s. With reduction gear of 1:24 (19.4 /s) the speed at 12 V is (driving wheel diameter 9 mm) v = 9 mm * Pi * 19.4 /s = 550 mm/s = 0.55 m/s, vproto= 0.55 m/s * 87 = 47.8 m/s = 172 km/h.

BOM

• Ribbon Cable Wiremount Socket Assembly, 1.27 mm, 3x2, Mouser #517-45106-000030
• Ribbon cable
• U-Joint 1.5 mm shaft NWSL #487-6
• LED warm white for headlight e.g. PLCC2
• LED red for ashpan e.g. PLCC2 VLMS30J1K2-GS08
• LED yellow for ashpan e.g. PLCC2 VLMY3000-GS08
• 2 PCS SMD Resistor 1 kOhm 1206
• PC-Board ROTH Elektronik RE 437
• Magnet Wire e.g. 30 AWG from Spark Fun
• Mounting Tape Tesa 55740
• Clear 5 Min Epoxy for potting the headlight LED

Wiring

Color	NMRA JST Pin#	Loco Header Pin#	Function
Red	8	1	Right Rail Pickup
Orange	7	2	Motor(+)
Gray	3	3	Motor (-)
White	5	4	Headlight
Green	9	5	FX3 (Ashpan Flicker CV 51: 23+128=151, F24)
Blue	6	6	Function Common (+12V)

3M™ Ribbon Cable Wiremount Socket Assembly, 1.27 mm (0.050") Pitch, 451 Series, Digi-Key 45106-000030, Mouser 517-45106-000030

Tender, Sound

BOM

• TSU-1100 Steam-2 (1 Amp) Tsunami2 Decoder - Steam, SoundTraxx #884006
• 20 mm Speaker, SoundTraxx #810053
• 20 mm Speaker Gasket Kit, SoundTraxx #810118
• Bipolar Capacitor 220 uF 25V, SoundTraxx #810128 (included in TSU-1100)
• Ribbon Cable Wiremount Socket Assembly, 1.27 mm, 3x2, Mouser #517-45106-000030
• Ribbon Cable

Wiring

Color	NMRA JST Pin#	Function
Black	2	Left Rail Pickup
Yellow	4	[Backup Light]
Blue	6	[Function Common (+12V)]
Purple	-	Speaker (+)
Purple	-	Speaker (-)
Blue	6	Current Keeper [Function Common (+12V)]
Green/Yellow	-	Current Keeper [Ground]
Green	9	FX3 not connected
Brown	1	FX4 not connected

Superstructure

DCC Decoder

Loco #18, ashpan F24

Sound Configuration

Function	CV	Value	Type
Sound Configuration 1	112	4
Fuel Type		+1+2, 0	Hand-shoveled Coal
Injector		+4, 4	lifting
Power reverser		+8, 0	disabled
3-cylinder exhaust		+16, 0	disabled
Articulated wheel-slip		+32+64, 0	disabled
Articulated exhaust		+128, 0	disabled
Engine Exhaust Control	114	90?	faster, for 4 chuffs per revolution
Whistle	120	2	Baldwin Single-Chime
Bell	122	5	Light Brass (1)
Exhaust Chuffs	123	0	Light (1)
Airpump	124	0	Single-Phase (1)
Dynamo	125	0	Dynamo (1)
Coupler Select	126
Poppet Valve Release Rate	200

Motor Configuration

Function	CV	Value	Type
Low-Speed Compensation	211	150?

ToDo

• Front light, small LED
• Chassis 1 mm Loch ausbohren, 1 mm Schraube
• Piston verlängern
• Tender-Loco Coupler