Difference between revisions of "TP-3"

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sound powered EE-8
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Sound powered telephone TP-3 is voice powered, requiring no dry cells for operation. A Neon Lamp and a key switch are included in this telephone for alternate reciept of a visual signal when the sound of the ringer would be otherwise objectionable. Telephone TP-3 is identical to Telephone EE-8 with respect to case, chassis, generator and ringer. However, EE-8 has a holding coil and capacitors not required in TP-3. Sound Powered Handset TS-10( ), is included in TP-3 as compared with battery operated Handset TS-9( ) included in EE-8
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Telephone TP-3 provides two-way signalling and voice communication over approximately six miles of Wire W-110-B (dry) or three and one-half miles of Wire W-110-B (wet).
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Handset TS-10-( ) has magnetic balanced armature type transmitter and receiver units. The power output of the transmitter is approximately 30 db below that of a battery operated transmitter; however, the sensitivity of the receiver unit is approximately 10 db better than that of the receiver unit part of the battery operated handset.
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[[File:TelephoneTP3.png|400px|Telephone TP-3]]
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[[File:TP3coverOpen.png|400px|Telephone TP-3, top cover open]]
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==Images==
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<gallery widths=100px heights=100px perrow=5>
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File:handsetTS10.png
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File:HandSetComponents.png
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File:telephoneBody.png
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</gallery>
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==Schematics==
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;Internal schematic diagram of the TP-3.
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:[[File:schematicDiagram.png]]
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;Sound powered unit schematic diagram.
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:[[File:SoundPoweredUnitSchematic.png]]
  
 
==Related Files==
 
==Related Files==
 
 
;{{cecom_pdf|REP-440_TP-3_Repaired_equipment_standard.pdf|REP-440}}
 
;{{cecom_pdf|REP-440_TP-3_Repaired_equipment_standard.pdf|REP-440}}
 
:Repaired Equipment Standard
 
:Repaired Equipment Standard
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::July 6, 1954
 
::July 6, 1954
  
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:SCTIL No.38, page 24
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::January, 1945
  
 
==References==
 
==References==
* TM 11-2043, 30 Aug. 1944
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;{{pdf|TP3002.pdf|TM 11-2043}}
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:* TM 11-2043,  
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::30 Aug. 1944
 
<references />
 
<references />
  
  
 
[[Category:Military/Field Phones]]
 
[[Category:Military/Field Phones]]
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{{DISPLAYTITLE:TP~3}}

Revision as of 01:08, 12 April 2017

Sound powered telephone TP-3 is voice powered, requiring no dry cells for operation. A Neon Lamp and a key switch are included in this telephone for alternate reciept of a visual signal when the sound of the ringer would be otherwise objectionable. Telephone TP-3 is identical to Telephone EE-8 with respect to case, chassis, generator and ringer. However, EE-8 has a holding coil and capacitors not required in TP-3. Sound Powered Handset TS-10( ), is included in TP-3 as compared with battery operated Handset TS-9( ) included in EE-8

Telephone TP-3 provides two-way signalling and voice communication over approximately six miles of Wire W-110-B (dry) or three and one-half miles of Wire W-110-B (wet).

Handset TS-10-( ) has magnetic balanced armature type transmitter and receiver units. The power output of the transmitter is approximately 30 db below that of a battery operated transmitter; however, the sensitivity of the receiver unit is approximately 10 db better than that of the receiver unit part of the battery operated handset.

Telephone TP-3 Telephone TP-3, top cover open

Images

Schematics

Internal schematic diagram of the TP-3.
SchematicDiagram.png


Sound powered unit schematic diagram.
SoundPoweredUnitSchematic.png

Related Files

Adobe_PDF_icon.png REP-440[1]
Repaired Equipment Standard
Telephone
TP-3
July 6, 1954
SCTIL No.38, page 24
January, 1945

References

Adobe PDF icon.png TM 11-2043

  • TM 11-2043,
30 Aug. 1944
  1. REP-440,
    "US Army Technical Manual Collection,"
    from the CECOM Historical Office archive, Aberdeen Proving Ground, MD.
    CECOM Historical Office