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  1. O Scale
    Question: Will Diesel horns work with a 60's LW Transformer? Both of my LW Transformers work with a Whistle Tender but not a diesel horn. With the 70's Lionel 6-8355 Santa Fe GP-20 Diesel Horn Dummy the speaker barely crackles. I replaced all of the transistors on one of the boards. Tried 2...
    diesel horn gp 38 gp20 horn circuit board lw transformer

  2. Diesel Horn

    This is a setup of a single horn generator. The right is an amplifier and the tone generator to the left. The car speaker is not shown. I got the schematic from a Kalmbach book.It's powered from a 9 volt battery or a 12 volt DC power supply. It has quite a tone range range from low to high. The ampl
    diesel horn
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