Zener tester is a device used for measuring zener voltages and also for plotting variation of zener voltage with zener current. Zener testers find its use in the lab equipment […]
Touch Operated Flip Flop Relay Switch
The post explains a simple yet very useful touch operated flip flop circuit. It operates by touching a sensor pad which results in an alternate high/low logic outputs in response […]
Logic Tester for TTL, CMOS and All Logic Families
The circuit described here works as a logic tester for TTL circuits, CMOS circuits as well as other logic families with similar behavior. The circuit is capable of indicating an […]
0 – 30 V Regulated Power Supply Circuit
This 0 – 30 V regulated work bench power supply provides outstanding line and load regulation and a continuously variable output from 0 to 30 V with output currents as […]
Transistor Gain Tester Circuit
You may have come across many ordinary transistor gain tester circuits designs, but this specific circuit will help you to determine the gain of high frequency RF transistors quickly with […]
+/- 15V Dual Regulated Power Supply Circuit
In this post we discuss how to build a simple, regulated fixed +/- 15 V symmetrical dual power supply circuit using standard components and very cheaply. Despite the fact that […]





