Parts
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Major PartsReceiver TransmittersRT-66/GRC Receiver Transmitter 20-28 MHzDimensions: 229 x 287 x 330, 15,90 kg (42 lbs)Receiver Transmitter, 20-28 mHz, continuous tuning, 80 channels or two presets, FM (F3E), power selectable Po=2 / 15 Watts, 27 tubes Channel spacing 100 KHz, bandwidth = 60-80 KHz Uses one of the following Power Supplies, connected through CX-1211/U Special Cable Assembly: PP-112/GRC (24 Volt), PP-109/GRC (12 Volt)
Technical Manual: TM-11-289 RT-67/GRC Receiver Transmitter 27-39 MHzDimensions: 229 x 287 x 330, 15,90 kg (42 lbs)Receiver Transmitter, 27-39 mHz, continuous tuning, 120 channels or two presets, FM (F3E), power selectable Po= 2 / 15 Watts, 27 tubes Channel spacing 100 KHz, bandwidth = 60-80 KHz Uses one of the following Power Supplies, connected through CX-1211/U Special Cable Assembly: PP-112/GRC (24 Volt), PP-109/GRC (12 Volt)
Technical Manual: TM-11-289 RT-68/GRC Receiver Transmitter 38-55 MHzDimensions: 229 x 287 x 330, 15,90 kg (42 lbs)Receiver Transmitter, 38-55 mHz, continuous tuning, 170 channels or two presets, FM (F3E), power selectable Po= 2 / 15 Watts, 27 tubes Channel spacing 100 KHz, bandwidth = 60-80 KHz Uses one of the following Power Supplies, connected through CX-1211/U Special Cable Assembly: PP-112/GRC (24 Volt), PP-109/GRC (12 Volt)
Technical Manual: TM-11-289 RT-70/GRC Receiver Transmitter 47-58 mHzDimensions: (12 7/8 x 7 1/4 x 5 1/4, 16 3/4 lbs)Receiver Transmitter, 47-58 mHz, continuous tuning or two presets, FM (F3E), power selectable Po=0.5 Watts, range1 mile Channel spacing 100 KHz, bandwidth = 60-80 KHz Uses 90 Volt dc and 6 Volt dc, Current drain
Spare Parts: GH-1992-2 Lamp Incandescent (3) No tools supplied Technical Manual: TM-11-290 RT-70A is also mentioned...
Part of
GRC-3,
GRC-4,
GRC-5,
GRC-6,
GRC-7,
GRC-8,
PRC-16,
VRC-7.
ReceiversR-108/GRC Radio Receiver, 20-27.9 mHzDimensions: (9 x 7 1/4 x 12 13/16, 25 lbs incl. Internal Power Supply)Radio Receiver, 20-28 mHz, continuous tuning or three presets, FM single conversion, super heterodyne, 15 tubes Channel spacing 100 KHz Uses 135 Volt dc and 6 Volt dc, Current drain 4 Amp. Contains one of the following Internal Power Supplies: PP-281/GRC (24 Volt), PP-282/GRC (12 Volt), PP-448/GRC (6 Volt).
Spare Parts: Fuse AGU 4 Amp. (1) Tools and Materials: Circuit Label, folded in a compartment on the chassis; Instruction Books (2) Technical Manual: TM-11-898 R-109/GRC Radio Receiver, 27-39 mHzDimensions: (9 x 7 1/4 x 12 13/16, 25 lbs incl. Internal Power Supply)Radio Receiver, 27-39 mHz, continuous tuning or three presets, FM single conversion, super heterodyne, 15 tubes Channel spacing 100 KHz Uses 135 Volt dc and 6 Volt dc, Current drain 4 Amp. Contains one of the following Internal Power Supplies: PP-281/GRC (24 Volt), PP-282/GRC (12 Volt), PP-448/GRC (6 Volt).
Spare Parts: Fuse AGU 4 Amp. (1) Tools and Materials: Circuit Label, folded in a compartment on the chassis; Instruction Books (2) Technical Manual: TM-11-898 R-110/GRC Radio Receiver, 38-55 mHzDimensions: (9 x 7 1/4 x 12 13/16, 25 lbs incl. Internal Power Supply)Radio Receiver, 38-55 mHz, continuous tuning or three presets, FM single conversion, super heterodyne, 15 tubes Channel spacing 100 KHz Uses 135 Volt dc and 6 Volt dc, Current drain 4 Amp. Contains one of the following Internal Power Supplies: PP-281/GRC (24 Volt), PP-282/GRC (12 Volt), PP-448/GRC (6 Volt).
Spare Parts: Fuse AGU 4 Amp. (1) Tools and Materials: Circuit Label, folded in a compartment on the chassis; Instruction Books (2) Technical Manual: TM-11-898 AmplifiersAM-65/GRC AF AmplifierDimensions: 108 x 201 x 330. Weight: 7,29 kg.Contains one of the following Internal Power Supplies: PP-281/GRC (24 Volt), PP-282/GRC (12 Volt), PP-448/GRC (6 Volt).
Spare Parts: Fuses AGU 4 Amp. (1); AGU 10 Amp. (1); Ballast Tube R-32 (1); Thermal Relay K-1 (1). Technical Manual: TM-11-5039 Power SuppliesPP-112/GRC Power Supply (24 Volt)Dimensions: 229 x 184,5 x 330. Weight:15,90 kg.
Spare Parts: Fuse AGU 5 Amp. (3); Fuse AGU 3 Amp. (1); Thermal Relay K-1, K-2 (1); Ballast Tube R-24, 25, 31, 37, 38, 40 (3); Vibrator 24 Volt E-1, 2, 3 (3). Technical Manual: TM-11-5036 PP-109/GRC Power Supply (12 Volt)Dimensions: 229 x 184,5 x 330. Weight: 15,90 kg.
Spare Parts: Fuse AGU 5 Amp. (2); Fuse AGU 10 Amp. (2); Thermal Relay K-1, K-2 (1); Ballast Tube R-24, 25, 31, 37, 38, 40 (2); Vibrator 6 Volt E-1, 2, 3 (3). Technical Manual: TM-11-5036 PP-282/GRC Internal Power Supply (24 Volt)Dimensions: 112 x 76 x 155. Weight: 2,73 kg. (4 1/4 x 5 3/4 x 2 15/15, 5 pound 9 ounces)Input 25.2 volts (20 to 32 volts), 1.23 amperes max.
Technical Manual: TM-11-5040 PP-281/GRC Internal Power Supply (12 Volt)Dimensions: 112 x 76 x 155, 2,73 kg. (4 1/4 x 5 3/4 x 2 15/15, 5 pound 9 ounces)Input 12.6 volts (10 to 16 volts), 2.25 amperes max. Output 136 volts dc (105 to 185 volts), 0.118 amperes
Technical Manual: TM-11-5040 PP-448/GRC Internal Power Supply (6 Volt)Dimensions: 112 x 76 x 155, 2,73 kg. (4 1/4 x 5 3/4 x 2 15/15, 5 pound 9 ounces)Input 6.3 volts (5 to 8 volts), 4.1 amperes max. Output 136 volts dc (105 to 185 volts), 0.118 amperes I am not sure if this was used in any of the original American configurations, however, they have been used in European vehicles operating on 6 Volt.
Technical Manual: TM-11-5040 Battery CasesCY-590/GRC Battery Carrying CaseBatteries: (5) BA-403/U, (1) BA-419/UMountingsMT-297/GR MountingMounting for vehicular sets - containing the connectors for the various parts. Apart from being a mechanical fixture with it's own shock mounts, it supplies power to all parts mounted on it, interconnects those parts and allows the Interphone system to be hooked up. This could be considered the most versatile mounting within the Old Family. There are four mounting positions on top - not all are used in some
configurations. From left to right: Running from the sides, there are seven short cables with connectors, to hook
up the parts in use. From left to right: The mounting also has the capability to interconnect up to two series of
daisy chained C-375/VRC Control Boxes for Interphone
and Radio for individual crew members by means of cable WM-46/U to
C-375/VRC Control Box. For more information, look up WM-46/U. Dimensions: 127 x 864 x 305 millimetres. Weight: 22,70 kilogram's. Variant: MT-297 SKPa + MT-297 SPKb (found in Dutch manuals) Add controls, pilot lamp and fuses Part of
GRC-3,
GRC-4,
GRC-5,
GRC-6,
GRC-7,
GRC-8,
VRC-13,
VRC-14,
VRC-15.
MT-298/GR MountingDimensions:Power Cable CO-212. MT-299/GR MountingDimensions:Power Cable CO-212 MT-300/GR MountingDimensions:Power Cable CO-212. MT-327/GR MountingDimensions:Power Cable CO-212. Part of
VRC-16,
VRC-17,
VRC-18.
MT-673/GR MountingDimensions:
Part of
PRC-16.
Control BoxesC-375/VRC Control Box for Vehicular UseDimensions: 204 x 178 x 102. Weight: 1,59 kg.Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, UIC-1, VRC-7, VRC-8, VRC-9, VRC-10, VRC-13, VRC-14, VRC-15, VRC-16, VRC-17, VRC-18, VRQ-1, VRQ-2, VRQ-3. C-433/GRC Remote Control BoxDimensions: 89 x 178 x 238,5. Weight: 2,27 kg.Dutch: Stuurdoos op afstand Part of GRA-6. C-434/GRC Local Control BoxDimensions 89 x 210 x 267. Weight: 3,63 kg.
Part of GRA-6. C-435/GRC Local Retransmission Control BoxDimensions:Directs retransmissions on sets so configured. Fits MT-297/GR
VariousWM-46/U Special Purpose CableThe Interphone System Cable, a heavy and specialized cable with ten leads of which five are shielded. This is the cable used to hook up the C-375/VRC Control Boxes to whatever mounting is used in the system. And, unlike later radios, where the cables come fitted with connectors and just can be hooked up, this one has to be soldered in. It's over 1,3 kilogram's per meter, is not easy to bend and must be soldered by hand. It's not the easiest of cables to find when fitting one of the Old Family Radio Sets - but it seems to have had other uses, so some years back I was able to order two fairly long rolls - with fitted connecters - from Fair Radio Sales. Searching the Internet also gave me two other designations that seem to lead to suppliers - have not tried them yet - using the nomenclature "MIL-C-2486C" and "MIL-C-1486". Originally, a short length of WM-47/U would be packed with each individual set, as well as a first Control Box. Fits: C-375/VRC, MT-297/GR, MT-298/GR, MT-299/GR, MT-300/GR, MT-327/GR, MT-673/GR.
Part of
GRC-3,
GRC-4,
GRC-5,
GRC-6,
GRC-7,
GRC-8,
UIC-1,
VRC-7,
VRC-8,
VRC-9,
VRC-10,
VRC-13,
VRC-14,
VRC-15,
VRC-16,
VRC-17,
VRC-18,
VRQ-1,
VRQ-2,
VRQ-3.
W-142 cableA cable I've never seen yet, but it must be a rather simple single lead insulated wire. It's used to connect the Antenna Connector on the Auxiliary Receiver R-108/GRC, R-109/GRC, R-110/GRC to the Antenna Post on Transmitter Receiver RT-66/GRC, RT-67/GRC, RT-68/GRC. When rebuilding a complete set, any old bit of wire will do in my opinion.
Part of
GRC-3,
GRC-5,
GRC-7,
VRC-16,
VRC-17,
VRC-18.
CX-1209/U Power Cable AssemblyPower cable between CY-590/GRC Battery Box and RT-70/GRC Receiver Transmitter. Part of PRC-16, MX 898/GR.CX-1210/U Power Cable AssemblyPower cable for battery use (Work out where and when - different for RT-66 and RT-70, also for G-8/GRC) Part of MX 898/GR.CX-1211/U Power Cable AssemblyDimensions: 3,5 inch. Weight: 0,225 kg.Connects between PP-112/GRC (24 Volt) or PP-109/GRC (12 Volt) and RT-66/GRC or RT-67/GRC or RT-68/GRC.
Part of
GRC-3,
GRC-4,
GRC-5,
GRC-6,
GRC-7,
GRC-8,
VRC-8,
VRC-9,
VRC-10,
VRC-13,
VRC-14,
VRC-15,
VRC-16,
VRC-17,
VRC-18,
VRQ-1,
VRQ-2,
VRQ-3.
CX-1213/U Special Purpose Cable AssemblyDimensions: ?? inch. Weight: ?? kg.Connects between RT-70/GRC and AM-65/GRC. Part of
GRC-3,
GRC-4,
GRC-5,
GRC-6,
GRC-7,
GRC-8,
VRC-7.
CO-212 Power CableDimensions:Integral part of mounting to Vehicular Storage Battery Part of MT-297/GR, MT-298/GR,
MT-299/GR, MT-300/GR, MT-327/GR.
WD-1/TT Field Cable (Telephone)Used with GRA-6H-8 Carrying BeltCarrying belt for C-433/GRC Remote Control Box.Part of GRA-6
Antenna BasesAB-15/GR Mast BaseDimensions: 380 Vehicular use Fits: Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, VRC-7, VRC-8, VRC-9, VRC-10, VRC-13, VRC-14, VRC-15, VRC-16, VRC-17, VRC-18, VRQ-1, VRQ-2, VRQ-3. Antenna MountingsMT-652/GR Antenna MountingDimensions:
Fits RT-66, RT-67, RT-68,
RT-70.
Mast SectionsMS-116-A Mast SectionDimensions: 1 metre. Weight: 0,273 kg.Base - fits itself to lengthen antenna and MS-117-A Fits Mast Bases AB-15/GR, MP-65-A-GY. Fits Insulator IN-127-GY. Part of GRC-3, GRC-4, GRC-5, GRC-6, VRC-8, VRC-9, VRC-13, VRC-14, VRC-16, VRC-17, VRQ-1, VRQ-2. MS-117-A Mast SectionDimensions: 1000. Weight: 0,64 kg.Middle - fits MS-116-A and MS-118-A. Part of
GRC-3,
GRC-4,
GRC-5,
GRC-6,
GRC-7,
GRC-8,
VRC-8,
VRC-9,
VRC-10,
VRC-13,
VRC-14,
VRC-15,
VRC-16,
VRC-17,
VRC-18,
VRQ-1,
VRQ-2,
VRQ-3.
MS-118-A Mast SectionDimensions: 1000. Weight: 0,225 kg.Top - fits MS-117-A.
Part of
GRC-3,
GRC-4,
GRC-5,
GRC-6,
GRC-7,
GRC-8,
MX 898/GR,
PRC-16,
VRC-7.
AB-22/GR Mast SectionDimensions: 580.Weight: ?? kg.Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, MX 898/GR, PRC-16, VRC-7. AB-23/GR Mast SectionDimensions: 580.Weight: ?? kg.Part of MX 898/GR. AB-24/GR Mast SectionDimensions: 580.Weight: 0,059 kg.Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, MX 898/GR, PRC-16, VRC-7, VRC-10, VRC-15, VRC-18, VRQ-3. Antenna CablesCG-530/U Antenna CableDimensions: length 1270 mm. Weight 0,225 kg.For frequencies above 29 MHz. Used with UG-273/U, UG-306/U Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, VRC-7, VRC-9, VRC-10, VRC-14, VRC-15, VRC-17, VRC-18, VRQ-2, VRQ-3. CG-568/U HF antenna cable.Dimensions: length 1270 mm. Weight 0,225 kg.For frequencies under 29 mHz Used with UG-273/U, UG-306/U
Part of
GRC-3,
GRC-4,
VRC-7,
VRC-8,
VRC-13,
VRC-16,
VRQ-1.
Antenna ConnectorsUG-273/U Adapter Antenna StraightWeight: 0,154 kg.Straight coaxial BNC adapter for use on Mast Base. Used with AB-15/GR, CG-568/U , CG-530/U Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, VRC-7, VRC-8, VRC-9, VRC-10, VRC-13, VRC-14, VRC-15, VRC-16, VRC-17, VRC-18, VRQ-1, VRQ-2, VRQ-3. UG-306/U Adapter Antenna AngledDimensions: 11,75 x 25,4 x ??. Weight: 0,163 kg.Angular (90 degrees) coaxial BNC adapter for use on Receiver Transmitter front. Used with RT-66/GRC, RT-67/GRC, RT-68-GRC, RT-70/GRC Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, VRC-7, VRC-8, VRC-9, VRC-10, VRC-13, VRC-14, VRC-15, VRC-16, VRC-17, VRC-18, VRQ-1, VRQ-2, VRQ-3. BatteriesBA-30Battery, 1.5 Volts (Military version of standard D-cell)Fits: C-433/GRC, C-434/GRC. BA-279/UBattery, 1.5 Volts, 6 Volts, 67.5 Volts, 135 VoltsEight-terminal receptacle Tested with TS-183/U Fits: PRC-8, PRC-8A, PRC-9, PRC-9A, PRC-10, PRC-10A. BA-403/UBattery, 1.5 VoltsFits: CY-590/GRC. BA-414/UBattery, 45 Volts.Fits: C-433/GRC. BA-419/UBattery, 90 VoltsFits: CY-590/GRC. BagsCW-187/GRCotton duck Carrying Bag for Handset, Cables, Mast Sections, Generator Feet and TM Part of MX 898/GR. CW-188/GR Cotton duck Carrying Bag for either Generator and Battery Box or Receiver Transmitter Part of MX 898/GR. CW-189/GR Bag for GRA-6. Dimensions: 280 x 197 x 270.Weight: 0,453 kg. Part of GRA-6. CW-206/GR Bag for manuals, spare parts and spare mast sections. Dimensions: 76 x 1016 x 127, Weight: 1,59 kg. Part of GRC-3, GRC-4, GRC-5, GRC-6, GRC-7, GRC-8, VRC-7, VRC-8, VRC-9, VRC-10, VRC-13, VRC-14, VRC-15, VRC-16, VRC-17, VRC-18, VRQ-1, VRQ-2, VRQ-3. CW-216/PR Bag worn on combat belt holding Handset H-33/PT, Antenna AT-271/PRC and Antenna Spring Section AB-129/PR Part of PRC-8, PRC-8A, PRC-9, PRC-9A, PRC-10, PRC-10A, Spare Part BoxesCY-684/GRSpare Parts Box. Metal box with felt lined interior - often this lining has become hardened and sticky with age. It's contents can vary, according to the set it was used with. The spares actually were delivered with each apparatus - I've tried to mention those with the different units that came with spares. The manuals state that in some cases - most cases, in my opinion - CY-684/GR would be too small to hold all spares supplied. The manual for each set suggests what spares to actually keep in the Spare Parts Box - I will try to document that list for those sets that I actually have the manual for, so you can check whether your particular box is filled accordingly. Dimensions: Weight:
1,36 kg.
GeneratorsGenerator. A hand driven generator. Part of MX 898/GR |
Last updated:
21-05-2005 19:54 +0200 |