Content for 2N3906

Sunrise Alarm LED Clock

“The ability to understand and control LED matrices is an important skill for anyone who hopes to be well versed in electronics. The understanding of shift registers and row scanning techniques necessary for such feats will prove useful in countless …

Make a Simple Laser Diode Module

“Laser diodes are quite useful in some ways especially in trigger/alarm systems such as triplight mechanisms or even in DIY toys if you just want to play with it. These two terminal devices are generally much more expensive than …

Suzuki Alto RPM meter

“Maruti Suzuki alto car is a 800CC 3 cylinder engine car. it’s a manual drive car , so i need to fix RPM meter for it because it doesn’t come factory fitted RPM meter. So i have searched ebay …

LM741 Op Amp on a Breadboard

“This is an LM741 op-amp built on a breadboard. The LM741 op-amp is an 8 pin IC chip, but I thought it would be fun to build my own on a breadboard. There are four sections to the chip, it …

Transistor-Based Variable Current Drive for LED Calculator

“Ive put off working on my LED calculator project for far too long, at first trying to find the right handheld case to put it in and then later hoping to be able to manufacture a case myself. Im not …