Brass Guide

Original open frame motor. It draws about 500 mA on the test stand. Reduction gear 1:28, 45x20x16 mm open frame motor

RR I1s #4300 in its Baldwin Locomotive Works builders' photo, taken in 1922

Wikipedia I1s: Their power was undeniable, but they were not popular with the crews, for they were hard riding at all but low speeds. One author described them as the holy terror of the PRR.

#4483 is stored at the Western New York Railroad Historical Society’s work site in Hamburg, NY.

Steam Locomotive Ultra-Detailing in “O” Scale…PRR I1sa #4390 http://mattforsyth.com/?p=330

Coreless DC Motor

I replaced the open frame motor with a coreless DC motor Maxon A-max 22 12V/6W.

Coreless DC motor (Maxon A-max22 12V/6W). Motor starts at about 1 V and draws 110 mA on the test stand.

Shafts, U-Joints, and Gearbox from NWSL

• 492-6 U-Joint, 2 mm shaft
• 1150-6 Ball-Bearing 0.3 mod 36-1 IDLER Gearbox 3 mm axle, 2 mm shaft

You can get it from Old Pullman or direct from NorthWest Short Line.

Roller Test Stand Videos

Decoder Installation

BOM

• TSU-2200 Steam-2 (2 Amp) Tsunami2 Decoder - Steam, SoundTraxx #884007
• CurrentKeeper SoundTraxx #810140
• 28mm x 40mm Oval Speaker Gasket Kit, SoundTraxx #810139
• Medium Oval Speaker, SoundTraxx #810078
• Pin Header 2.54 mm (1/10") 3x2
• Pin Socket 2.54 mm (1/10") 3x2
• 2 PCS LED white for headlight and backup light e.g. PLCC2
• LED red for ashpan e.g. PLCC2 VLMS30J1K2-GS08
• LED yellow for ashpan e.g. PLCC2 VLMY3000-GS08
• 3 PCS SMD Resistor 1 kOhm 1206
• PC-Board ROTH Elektronik RE 437
• Magnet Wire e.g. 30 AWG from Spark Fun
• Mounting Tape Tesa 55750 (55740)
• Clear 5 Min Epoxy for potting the headlight LED
• Locomotive drawbar 15 x 8 x 0.5 mm, tender drawbar 10 x 8 x 0.5 mm (brass sheet)

Docs

• Installation Guide
• Electric User’s Guide
• Steam User's Guide
• Steam Technical Reference (CV codes)
• Sound Selections for Tsunami2 for Steam Prototyps

• Electrical Interface & Wire Color Code for Digital Command Control
• Energy Storage
• Digitrax Zephyr xtra Set Manual

Wiring

Locomotive

Tender

Spare

Sound Configuration

Light Configuration

Motor Configuration

Headlight

• Cal Scale HO PRR Headlight #190-477
• Cal Scale HO Headlight PRR Modern #190-235
• Cal Scale HO PRR Headlight Bracket #190-478

Cab Details

• Throttle
  • PSC Oversize #3058
• Reverse Lever
  • PSC #3260
• Gauges
  • PCS Dual #3226
  • PCS 4 gauges #3071
• Brake Control
  • PSC Westinghouse H-6 #3044
• Stoker
  • PSC Duplex type #3059
• Seats
  • PSC #3046
• Valve Control
  • PSC #4884

Finished Model