Protosound

MTH GP20 1997 engine review / operating tips protosound 1 O-SCALE

Too Many Hobbies Jeremy

MTH Union Pacific Propane Turbine (Proto Sound 2)

Bard Brothers Railroad

MTH TRAINS: PROTOSOUND SPEAKER "THOUGHTS".

MTH Transformer Z4000 programming feature for Protosound 1 engines

Too Many Hobbies Jeremy

MTH Protosound 1 Hudson is a HEAVY Smoker!#MTH #oscaletrains

MTH DCS Remote Commander, a cheaper way to access Protosound 2 (read pinned comment) and 3 engines.

Too Many Hobbies Jeremy

Setting Up Your MTH Railking Protosound 2.0 Ready to Run (RTR) Train Set

MTH Protosound - Let's try using different transformers - Conventional mode O Gauge Lionel Alco

Too Many Hobbies Jeremy

MTH Premier BNSF GP38-2 Diesel Locomotive with ProtoSound 2.0

Zach Summer (BrightonZach)

Toy Trains 101 How to Replace the Battery on MTH Protosound Engines

MTH Protosound 3.0 Sound Samples & Demo (All 28 Functions!)

MTH Protosound 3 consisting with DCC and non PS3 units

Matt's Performance Locomotives

MTH Protosound 3 PRR A5, Premier O Scale Pennsylvania Railroad A5 0-4-0 MTH 20-3598-1

MTH Premier New Haven FA-2 with protosound 2

CountryBunker’s Trains

How to: MTH Protosound Battery Replacement

MTH EP-5 protosound 1 review -I've had this loco the longest of them all

Too Many Hobbies Jeremy

Getting this MTH GP9 ready for the layout - early protosound 1

Too Many Hobbies Jeremy

Protosound - Батюшка. Свобода Концерт Холл. Пермь 29.11.2023

Мастерская гусельного искусства

MTH EP5 troubleshooting and repair Proto-sound 1

Too Many Hobbies Jeremy

MTH Railking 1500 Switcher Protosound 2.0 DOA