Simtek is a manufacturer of analog instruments, displays and control panels for the manufacture of commercial and military flight simulators and training equipment, located in Euless, Texas. Simtek designs, manufactures and services a wide range of products, primarily for the flight simulation industry.

With 40 years of design and manufacturing experience, Simtek's simulated instruments perform the most challenging requirements for aerospace and defense training device in use today. 
From Classroom Trainers up to and including Level D Full Flight Platforms, each Simtek instrument is engineered to meet exact customer specifications.
Available in a variety of interfaces; Simtek utilizes cutting edge technologies into sophisticated, cost-effective solutions, tailored to your specifications.

Simtek products are mainly:

DRIVE SYSTEMS CAPABILITIES
DC Meter Movements
DC Servo (Pot Feedback)
DC Resolver Feedback
DC Torquer
AC Synchro Repeater
AC Servo
INTERFACE DRIVE CAPABILITIES
Serial Interface
Discrete I/O
SERIAL INTERFACE DRIVE CAPABILITIES
RS232, RS485, RS422
USB
Ethernet
PoE - Power over Ethernet
ARINC 429
CANbus
POWER TOLERANCE
+/-15 VDC  +/-1 VDC  (+/-18VDC Absolute Max)
28 VDC  +2, -4 VDC
5 VDC  +/- 0.25 VDC
Digital Power: 5 Or 28 Vdc
LIGHTING
Power: 5V or 28V
NVIS Compatible
Incandescent (Type V)
MIL-L-85762 & MIL-STD-3009
Light-Emitting Diodes (LED) Type VII
Custom PWM dimming
LCD
Dichroic
OLED
Heilmeier
OEM
FMTN
Custom

Simtek is product portfolio consists of panel control, instruments, display instruments, light panels, aircraft..