Heeressignaltafel - Duitsland Voorschrift, HDv 425 Relay unit BE-84-A (teletype trunk) - USA Voorschrift, Technical Manual, 11-343 Signal Training. Pamphlet no. 3. Maintenance of Signal Equipment in the Field. Part IV. Teleprinters 7B (WD). 1945 - Engeland Voorschrift Signal generator TS-343/U - USA Voorschrift, Technical Manual, 11-1233 Keyers TG-10-A, TG-10-B, TG-10-C, TG-10-D, TG-10-F, TG-10-G, TG-10-H and TG-10-J - USA Voorschrift, Technical Manual, 11-447 Signal training. Vol. III : Wireless station maintenance and fault finding, and associated vehicle suppression systems - Engeland Voorschrift, 26/GS Publications/562
