vincent_lwh

Oh one more thing, it must last for at least 3 hours non-stop. If not, the longer lasting the better. 😀

Is there batteries that are very small and lightweight but powerful? I'm looking for batteries or combination of batteries which does not exceed an area size of 5 cm square....

Oh, and I read somewhere that I need a crystal diode. Is this true? #-Link-Snipped-#

I'm thinking of building a simple "walkie talkie" out of electronic components.

Hi, thanks for the websites. It's very informative. But is there a specific audio amplifier; frequency modulated oscillator; RF power amplifier, I should use in my FM transmitter? Or can...

Hi, I'm very new in this communication principle. 1. I am suppose to design a simple FM transceiver circuit to transmit a voice from a transmitter to a receiver module...

Will I reduce the battery life of the laptop if I continue to plug it in the wall even when it reaches 100% ? Should I remove the battery when...

Hi all, Is there anyone who is kind enough to answer me?

What is the relationship/formula of the worm gear between the angular rotation of the gear and the linear movement of the worm? I want to know how to derive the...

Ohh, ok. I feel embarrassed for asking. Sorry.