Number | Name | Date | Kind |
---|---|---|---|
4038611 | Greig | Jul 1977 |
Entry |
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Martin, "Three-Color Signals with One Lamp", Model Railroader, Dec. 1974, p. 78. |
Dunavin, "Tricolor LED Signal Circuit", Model Railroader (Symposium on Electronics, Nov. 1981, pp. 103, 104. |
Mitchell, "Searchlight Signal in HO Scale (Almost)", Model Railroader (Symposium on Electronics), Feb. 1984, pp. 97, 98. |
Trost, "Vier Farben mit Zweifarben-LED", Funkschan (Germany) Jan. 1982, p. 83. |