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AM-2210 AUDIO FREQUENCY AMPLIFIER
The AM-2210N/WTC Audio Frequency Amplifier, commonly called the sound powered telephone amplifier or SPTA, amplifies voice signals in a communications net that uses sound powered telephones (SPT). The SPTA is used to amplify voice signals so transmitted messages are clear and understandable at SPT installations where there are high ambient noise levels such as gun positions or machinery spaces. The AM-2210N/WTC consists of a bulkhead mounted case and a plug-in electronics chassis. The bottom of the bulkhead-mounted case contains a removable plate for a ship's wiring entry. The case and the plug-in chassis are fabricated from aluminum and the complete unit weighs 12 pounds. The power supply converts a ship's primary AC power of 115 Vrms, 60 HZ to DC power to operate the SPTA amplifier stages, input/output (I/O) relay, and push-to-talk (PTT) detect circuit.
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AM-3729 - AUDIO FREQUENCY AMPLIFIER
The AM-3729/SR Audio Frequency Amplifier is for general use in amplifying the audio output of Navy communication receivers to a level that will adequately drive a loudspeaker. The amplifier has dual inputs and maximum output is 10 watts with less than two percent distortion. Output does not vary more than two dB when the output load varies from 300 to 600 ohms. Frequency response is flat to within two dB from 200 to 4000 Hz. Power requirements are 105-125 Vac, 300 watts, 50-60 or 400 Hz, single phase for operation and is self protected against over voltage and over loading.
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ANVIC-1 - VEHICLE COMMUNICATIONS SYSTEM
C-2298 C-2296 C-2297 C-10456
AN/VIC-1C-2298/VRC
The C-2298/VRC Crewmember Control Box, allows vehicle crewmembers to select, by means of the monitor switch and the audio accessory controls, to communicate with other crewmembers via the intercom circuit, or remotely operate or monitor any radio equipment connected to the AM-1780/VRC. When connected to a special port on the AM-1780/VRC, the standard control box becomes a "Commander's Control Box", allowing the vehicle commander to control and/or override crewmember functions of the intercom and radio equipment.
AN/VIC-1C-2297/VRC
The C-2297/VRC Driver's Control Box, functions normally as a crewmember control box, but also contains circuits providing for the control and monitoring of the "Outside Control Box". C-2296/VRC. This also allows the C-2296/VRC to be connected to the other vehicle crewmembers and radio equipment via the AM-1780/VRC.
AN/VIC-1C-2296A/VRC
Commonly placed in a weatherproof housing outside of a combat vehicle, the C-2296A/VRC allows for the use of the vehicle intercom circuit to communicate with crewmembers or use radio equipment connected to the AM-1780/VRC. The C-2296/VRC is provided with an H-207/VRC handset, permanently attached, requiring no audio accessories to be attached. Binding posts are provided to allow the connection of a field telephone circuit, or other radio-wire equipment.
AN/VIC-1C-10456/VRC
A modified C-2298/VRC designed for use with the M1 Abrams Tank. It functions the same as the C-2298/VRC except that is allows remote keying of the intercom or radio through a remote keying jack, normally connected to special keying cables in the M1. This disconnects the normal keying functions of the crew audio accessories and enables special keying controls in the tank. When a dummy plug is connected, the unit functions as a C-2298/VRC.
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PP-6224 B/U - Power SUPPLY
The PP-6224 B/U is a ruggedized 28v DC switch-mode power supply. The regulated DC output can be adjusted from 24vdc to 32vdc at a rated 25amp output current. This power supply operates from an AC source of 103 to 126.5 or 207 to 254 volts @ 60hz and 400hz.
If low or no AC is present the supply automatically switches to an externally connected back-up battery and provides a pass-thru source of power to the load.
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PP1660 - PORTABLE GROUND VEHICLE ENGINE STARTING & BATTERY CHARGING UNIT
*Portable self-contained unit for charging 6-12-24 volt vehicular storage batteries. It is also a 75-ampere booster for cranking the engine of a vehicle when the vehicle battery is discharged. *Oversize diodes for long MTBF
Features
This self contained unit is furnished completely assembled. Two removable battery clips are stored on posts on the side of the case. All operating controls and a dc ammeter are mounted on the front panel. A 14-ft. ac input cable and two 11-ft. dc output cables are connected internally and brought out of the case at the rear. Hangers are provided on the back of the case for storing the ac input cable and on the left side of the case for storing the dc output cables.
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B-9 AIRCRAFT HANGAR GROUND POWER UNIT
*Provides 400 ampere 28 VDC Power for large and small aircraft maintenance, pre-flight checks *Supplies over 1600 amperes surge current for starting jet and turbine engines. *Operates inside from 200-480 VAC
Features
The B-9 power supply is a self-contained direct current power supply used for aircraft maintenance, pre-flight checks and engine starting. The unit operates on three-phase 50/60 HZ input power from one of six input voltages. The output is 28-volt, 400-ampere DC power capable of surges to 1600A. Output voltage and current are monitored on front panel meters. The unit has self contained wheels and handles for mobility.
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PP2926 - WAREHOUSE BATTERY CHARGER
For Battery Powered Forklifts And Ground Power Equipment
*This battery charger provides a source of direct current (dc) for charging lead-acid (LA) type storage batteries such as those used in electrically operated forklift trucks and ground power equipment. *Operates inside from 208-460 VAC *Oversize diodes for long MTBF
Features
Used to charge 18-cell LA batteries (rated 850 amp/hr) without removing the battery from the user unit. All controls and meters are mounted on the front panel. The input power cable is a 9-foot, four-conductor, unterminated cable. The dc output cable is a 10-foot cable terminated in a two-conductor storage battery plug. Provided with lifting ring that supports weight of entire unit.
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