F. W. Chesson						     File: INSUL.HTM
Waterbury, CT  06710					      New: 10-5-98
fchesson@snet.net					      Rev: 5-23-2006


			SIGNAL CORPS INSULATORS   

IN-1		Hard rubber insulator, with hooks
IN-2		Ball-type, Electrose 4500
IN-3		Dielecto, "streamline"
IN-5		Hard rubber, 5.5 x .625"
IN-8		Phenolic rod, 4"
IN-9		Separator
IN-10		Micarta, with hooks or clevises
IN-55		Hard rubber, later porcelain with end hooks
IN 61		Porcelain rod, 18"
IN-78		Locketite aircraft 1.5 x .5"
IN-78A		"	"    "	   ball, 1.25"
IN-79		Ins.					P/O SCR-183, 274N
IN-81		Ins.					P/O SCR-183, 274N
IN-82		Ins.					P/O ART-13
IN-83		Ant. Lead-in Insulator Beads		U/W SCR-183, 274N
IN-84		Ins.					U/W SCR-274N, 585
IN-85		Ins.	  U/W BC-157, CO-89		P/O SCR-178
IN-86		Isolantite Strain Type, 3.5"		U/W SCR-177/188
IN-86-A		Locke bar type, 4.5" bale-loops		U/W SCR-506
IN-88		Locketite, 2" rod  		U/W RC-39,43, SCR-183, ARQ-8
IN-89		Ins.
IN-90		Ins.					U/W SCR-277
IN-92		Pyrex Lead-in Ins.			U/W SCR-241
IN-93		Support Ins.	  U/W MA-2, MP-32	 "	"
IN-94		Ant. Base Ins.    U/W MS-61		 "      "
IN-98 		Ins.					U/W SCR-506
IN-101		Porcelain Bushings			U/W vehicular radios
IN-104		Ins.					U/W SCR-193
IN-106*		Ant Base  U/W MS-56			U/W SCR-284
IN-111		Ins.					U/W SCR-508
IN-116		Lead-In Assembly
IN-121		Ins.					U/W SCR-193H
IN-125		Ins.					U/W SCR-244B
IN-127		Ant. Ins.	 			U/W SCR-300,694, GRC-9
IN-129		Ant. Ins.					c 1946

                              AN-  ANTENNA Insulators 

AB-4/VRW-1 	Guy Wire-Insulator Set

IL-2/U		Antenna Insulator
IL-4/G		Center Insulator, with SO-239.  U/W GRA-4,50 Doublet Antennas
IL-5/U		6 x 5/8" rod, sprint-tensioned
IL-26/U		Rod Insulator, metal ends
IL-27/U		"	"	"	"
IL-28/U		"	"	"	"
IL-29/U		"	"	"	"
IL-30/U		"	"	"	"  1.75" Dia
IL-31/U		Bar-type insulator
IL-32/U		Rod Insulator, metal ends  1.75" Dia
IL-33/U		"	"	"	"  1.25" Dia
IL-56/U		"	"	"	"  1.25" Dia
IL-57/U		"Johnny-Ball" Insulator
IL-61/TSC-38B	Fiber-glass rod, 35 x 3/8" with metal ends

		M*- Items probably including insulators. 

MK-911/PRC-74   Long-wire Kit for RT-794/PRC-74, 2-18 MC
MK-1294/G	VRC-12/GRC-160 Antenna Kit

MT-2786/PRC	Ground Plane Mount for AS-1320/PRC-47
MT-2976/PRC-41  Vehicle Mount for RT-695/
MT-2977/PRC-41     "      "    "  PP-3700

MX-141*/GR		TRC-1 Ant. Extension Kit
MX-159/APM-12 		Ant. Guard
MX-186/TPL-1		Ant. Drive Assembly
MX-189,190/ARA-4 	Insulators 
MX-270-273/AR		Insulators
MX-274,275/AR		Tensioning Units for Aircraft Fixed Antenna 
MX-298-300/CRD-3 	Guys (FT-9 Fastener)
MX-311/AR		Guy Fitting
MX-313/CRD-2 		DF Counterpoise
MX-318/CRD-3 		 "	"    
MX-337/UR		Z Matching Kit
MX-348-50/TPS-1 	Ant. Modif. Kit
MX-378/U		Mast Guy Ring  P/O AB-86
MX-379/U		Guy Fastener
MX-381/GRA-4 		Guy Set, 40 ft RP-3, FT-9  U/W AB-85,86/ 
MX-382/GRA-4 	   	 "	 31 ft RP-3, FT-9   "	    "
MX-383/GRA-4 	   	 "	 50 ft RP-3, FT-9   "       "
MX-384/			Circular Mast Insulator
MX-438/CPN		Beveridge Lead-in Unit	   P/O AS-258/CPN-11,12
MX-489/MPN-1    	Ant. Modif. Kit
MX-516/GR	 Halyard.  140' nylon, insulator & pulley  U/W AS-244/GRA-4
MX-553/TRC-1		Ant. Ring & Snap		P/O AB-33/
MX-555/U		Guy Ropes, 50 & 37 ft, nylon  U/W AB-33/TRC-1
MX-600,01/FRT		Xmission Line Kits
MX-697-708/URR		Rcvr Ant. Components				  c 1946
MX-742/FR		Rhombic Kit				TM 11-2617  1945
MX-745,A/FR		Guy Wire Kit			   TM 11-5985-223-  1959
MX-765/FR		Ant. Kit				TM 11-5010  1948
MX-849/CRD-2    	Ant. Skirt
MX-854/FR		Ant. Kit				TM 11-5027  1949
MX-1469/		Nylon Guy Ropes, 44 ft
MX-2706/GRA-50		Ant. Halyard  
MX-2799			Ant. for RT-246 & 524 30-80 MC FM Radios
MX-6707			Ant. Base-Matching Unit	U/W PRC-25,77

ÿ			Insulator Manufacturers  

MDS		Name							FSCM
-------------------------------------------------------------------------------
CH-	Electrose Insulator Co.			  			  na
CAS-	American Lava Corp.			Chatanooga, Tenn.	70371
CAL-	Locke Insulator Co.						  na
CBI-	Corning Glass Works						14674
CBJ-	Ohio Brass Company						79911
CBN-	Central Radio Laboratory (Centralab, Inc.)    Milwaukee, WI	71590
CBO-	Lapp Insulator Co.						75539	
CBU-	Isolantite, Inc.			Belleville, NJ		81143
CDB-	Bud Radio, Inc.							71218
CDP-	General Ceramics						72656
CJD-	J.F.D. Mfg. Co.							73899
CLS-	L. S. Brach Company						71113
CNA-	National Company						42498
CNP-	National Porcelain Company					76626
CPP-	Porcelain Products Co.						86559
CSJ-	Stupakoff Ceramic & Mfg. Co.					78616
CVT-	Victor Insulators, Inc.						86993
CYB-	Birnback Radio Co.						71002

CAHC-	Barker & Williamson Co.						05690
CAVQ-	Star Porcelain Co.						78537
CAXD-	Insuline Corp. of America					74887
CAYO-	Akron Porcelain Co.						83346
CBBG-	Cook Electric Co.						71688
CBDT-	Illinois Electric Porcelain	

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