ABB
Acme
Acrolab
Aeco
Agastat
Almetek
Alpha Wire
American Superior
Amp
Amperite
Amphenol
Amprobe
Armaco
Armoat
Asalco
ASB
Asco
Astatic (CND)
A.T.C.
Aube
AugatB & K

B & L
Bach-Simpson
Balluff
Banner
Beckman Meters
Beiden
Bestobell
Bogen
Bourns
Broyce
Bryant
Buss

Cannon ITT
Carling
Carol
Centralab
Chromalox
Cinch
Circuit Test
Cole-Flex
Conik
Controlab
Corcom
CRC
Crompton Greaves
Crompton Instr.
Curtis
Cutler-Hammer

Dale
Danfoss
Delhi
Delta
Dialco

Eagle Timers
ECG/Philips
Edsyn
Efector
Electromatic
Enerpac
Enforcer
Entrelec
Etlin
Eurobex
Eveready

Fluke
Forcefield
Fusetek

G&B
Gems
General Cement
General Elec. Can. Inc.
General Wire
Globe/Gel
Grayhill
Greenlee
Guardian

Hammond
Hastings
Heineman
Heyco
Honeywell
Hoyt
Hubbell
Hunter

Ico-Rally
Idealite
IDI (Lamps)
Ilsco
Industrial Timer
International Rectifier
I.R.C. Resistors
ITT Cannon

J.B.T.
Johnson EF

Kester Solder
Keystone
Killark
Klein
Klockner

Leecraft
Lenline
Lightguard
Linemaster
Littelfuse
LitteliteMaglite
Mallory
Marsland
Master (Heat Gun)
Maxell
Mercer
M.G. Chemicals
Microswitch
Miyama
Motorola
MTP
Mueller

N.C.C.
Noma

Ohmite
O.K. Tools
Omron

P & F
Pamotor
Panavise
Panduit
Paragon
Philips
Photo-Switch
Polygon
Pomona
Potter & Brumfield
Power Measurement
Powervolt
PRB
Prec. Electronics
Provo
Pursley

RCA Semi’s
RCC
Red Lion
Richo
Rotron

Schiele
Schroff
Scotch-Flex
Secure
Senett
Shure
Siemens
Skinner Valves
Smith H.H.
Sola Basic
Sonalert
Spectro
Standard
Stahl
Star
Struthers-Dunn
Switchcraft
Syntron
Sylvania
Syracuse Timers

Tamko
TDK
Technilite
Techspan
Tech-Spray
Telex
Texas Instrument
Thomas
Transfab
Tri-Point
Triplett
Turck
Tyton

Ungar
University

Vaco
Vector
Veeder-Root
Vernitron
Viking
Vista

Wahl
Wakefiel
Waldom
Weidmuller
Weller
Westinghouse
Wilbac
Workman

Xcelite

Yuasa