4
PCWinTech.com
1,301
Freeware
Simple Port Tester is a neat application created to test TCP and UDP ports.
23
Circuit Diagram
2,185
Open source
It helps you make electronic circuit diagrams and export them as images.
335
New Wave Concepts Limited
9,800
Shareware
Combines circuit design, simulation and CAD manufacture to realize projects.
15
University of Colorado
430
Freeware
Build circuits with resistors, light bulbs, batteries, and switches.
16
Simutech Multimedia Inc.
827
Shareware
Train yourself to troubleshoot electrical circuits safely with this program.
1
ETCAI Products
290
Shareware
Help teach DC circuit analysis and troubleshooting.
14
testmyhardware.com
1,011
Freeware
Obtain important data about your system with Test My Hardware.
4
Lightware Enterprises
67
Freeware
Connection Tester is an easy and simple software ping tool.
SimpleSoft, Inc.
3
Demo
Simple Tester is a test tool that automatically exercises SNMP v1,v2C agents.
1
ProEZNC communications
19
Shareware
A reliable, no-frills, low cost, simple and easy to use RS232 dnc software.
100
ExpressPCB
16,252
Freeware
Create simple or complex layouts for printed circuit boards.
Optim Engineering
13
Demo
A battery voltage tester and a battery load tester.
True Soltec Co.,ltd.
Freeware
Pull Tester is a motor driven automatic pull force tester of crimped harnesses.
8
the Qucs team
3,037
Open source
Quite Universal Circuit Simulator is an integrated circuit simulator.
13
Richard P. Andresen
1,142
Shareware
Use analog circuit simulation for the professional circuit designer.
3
ABB
324
Freeware
Air circuit breakers can be used both as circuit-breakers for general protection.
65
TypingMaster, Inc.
53,989
Freeware
TypingMaster Typing Test is a free, full-featured typing tester for Windows.
