Signal generator TS-343/U - USA Voorschrift, Technical Manual, 11-1233 Beschrijving digitaal rekentoestel Electronisch equipment construction : new objectives, new techniques, new components : terminal report, 1 June 1950 elite World War II battlefield communications / by Gordon L. Rottman Instrument flying : instruction book / Howard C. Stark Signal training. Vol. III : Wireless station maintenance and fault finding, and associated vehicle suppression systems - Engeland Voorschrift, 26/GS Publications/562 research paper improved radio sonde and its performance / by Harry Diamond [et al.] 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 Pre-induction vocational training in electrical signal communication Signal Training Pamphlet no. 3. Part I. Waterproving of signal equipment for protection during wading. (Provisional). WO 7570 Signal Training. Pamphlet no. 3. Maintenance of Signal Equipment in the Field. Part IV. Teleprinters 7B (WD). 1945 - Engeland Voorschrift