TM 11-2650 C1 TECHNICAL MANUAL MODULATOR MD-69/FRT CHANGES No, 1 TM 11-2650, 19 November 1945, is changed as follows: Title is changed to read: Modulator MD-69/ FRT. 32. Relays (Superseded) a. The proper operation of the relays in the aux-…Historic129 pagesComms Signal
1. General a. This section assigns maintenance functions and repair operations to be performed by the lowest appropriate maintenance echelon. b. The columns are as follows: (1) Part or component. This column shows only the nomenclature or…Historic91 pagesComms Signal
Vacuum tube voltmeter (Hickok model 110-B) is an electronic test unit used to measure either d-c (direct-current) or a-c (alternatingcurrent) voltages. Readings are registered on a single meter which has five scales. The circuits are…Historic89 pagesComms Signal
SECTION I. DESCRIPTION 1. GENERAL. Keyer KY-7/FRT (fig. 1) is a unit designed to adapt any type of keyed radio transmitting equipment to tone-keying operation. The keyer is intended for use with a 500-ohm keying line. This line feeds a…Historic67 pagesComms Signal
SECTION I DESCRIPTION OF CRYSTAL TEST SET TS-314/FSM-l ' 1. GENERAL. Crystal Test Set TS-314/FSM-1 (Ray Jefferson Activity and Fre quency Test Unit AF-30) is an instrument designed for checking the activity and frequency of quartz crystals…Historic95 pagesComms Signal
(WARNING) HIGH VOLTAGE is used in the operation of this equipment. DEATH ON CONTACT may result if personnel fail to observe safety precautions. Be careful not to contact high-voltage connections or 115-volt input con- nections when working…Historic80 pagesComms Signal
Covers Radio Sets SCR-210 and SCR-245 series, including description, employment, operation, and functioning of components.Historic159 pagesComms Signal
TM 11-273 RADIO SETS SCR-193-A, ETC. 1-4 1. Purpose.— Radio sets SCE-193-A, SCR-193-B, SCR-193-C, SCR-193-D, and SCR-193-E are designed for installation in vehicles for the purpose of providing intervehicular communication whether the…Historic123 pagesComms Signal
In case of electric shock, shut off the high voltage at once and ground the circuits. If the high voltage cannot be turned off without .delay, free the victim from contact with the live conductor as promptly as possible. Avoid direct…Historic126 pagesComms Signal
Section I. GENERAL 1. Scope a. This technical manual contains instructions for the installation, operation, and organizational maintenance of Radio Sets AN/VRC-8, —9, and -10. The information is intended primarly for operators and…Historic122 pagesComms Signal
Covers Receiver-Transmitters RT-66/GRC, RT-67/GRC, and RT-68/GRC, including operation, maintenance, and modification work orders.Historic28 pagesComms Signal
Section GENERAL 1. Scope a. This technical manual contains instructions for the installation, operation, and organizational maintenance of Radio Sets AN/VRC-13, -14, and -—15. The information is intended primarily for operators and…Historic156 pagesComms Signal
AGO 313A WARNING HIGH VOLTAGE is used in the operation of this equipment. DEATH ON CONTACT may result if personnel fail to observe safety precautions.Historic137 pagesComms Signal
Supplement covering Radio Sets AN/VRC-19, -19X, and -19Y, with changes and supplementary information to the basic technical manual.Historic14 pagesComms Signal
To prevent the enemy from using or salvaging this equipment for his benefit. WHEN—When ordered by your commander. HOW — 1. Smash—Use sledges, axes, handaxes, pickaxes, hammers, crow- bars, heavy tools, etc. 2, Cut—Use axes, handaxes,…Historic180 pagesComms Signal
TM: n-302 C 1 TECHNICAL MANUAL, 10y4. (Added.) Power units PE-HF-43 and PE-HG-43.— These units are identical with power units PE-HD—13 and PEHE-43. All information in paragraphs 1 to 10 inclusive pertaining to power units PE-HD-43 and…Historic87 pagesComms Signal
TM 11-303 Pars. 1-3 This manual supersedes War Department Training Circular 69, 19 May 1943 SECTION I DESCRIPTION 1. PURPOSE. Test Sets I-56-C, I-56-D, I-56-H and 1-56 J, referred to in this text as Test Set 1-56- (*), are electrical…Historic111 pagesComms Signal
5. Adapter RS-259 This adapter is used for aligning Radio Sets SCR-509-(*), SCR-510- (*), and SCR-610-C*). It plugs into the transmitter Battery BA-39, thereby placing a 500-ohm, 5-watt resistance in series with the highvoltage (h-v) lead.…Historic51 pagesComms Signal
RESTRICTED TM 11-310 SCHEMATIC DIAGRAMS FOR MAINTENANCE OF GROUND RADIO COMMUNICATION SETS This manual contains a condensation of information for the maintenance of Signal Corps ground radio communication sets. It is presented as a…Historic320 pagesComms Signal
C, nsny of itter ermit ote trol mitter e point pairs units, attery sed for m the he revers may switch. s th field es under r. The signating equipnd all equipM-13-(*) refers RM-13-D, and nd to those of the example, Control 55-D are comn —…Historic84 pagesComms Signal
capture of this equipment, O PART OF IT CAN MY, BURN ALL cts are readily e, oil, paper, or tes and circuit ent-boards. means and meters. gas, oil, and water er rotating, moving phones, microainers, etc. or dispose of it in ULD NOT BE A-C…Historic15 pagesComms Signal
WAR DEPARTMENT Washington 25, D. C. 28 Aug 1943 This Technical Manual is furnished for the information and guidance of all concerned. RESTRICTED Dissemination of restricted matter.— The information con tained in restricted documents and…Historic114 pagesComms Signal
11-321 SIGNAL CORPS een nen rest aae Figure 1 View showing Test Set I-56-E complete with each unit in place in carrying case.Historic58 pagesComms Signal
TECHNICAL SWITCHBOARDS BD-71, BD-72, AJtfD Changes! DEPAETMENT, No. 1 J D. C., December 1944. TM 11-330, 29 October 1943, is changed as follows : 11.1. GENERAL (Added). The outbreak of gas war fare -should not interfere with the continuity…Historic55 pagesComms Signal
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