VA3JFL Joel Lagace Blog

I'm VA3JFL Joel Lagace. Just my spot on the net for keeping in touch with my friends and similar minded folks with interests in radio and electronics. I'm no drama anything goes personality.

[hamradiodude]

My new site

[quartz-components]

LM7905 Voltage Regulator

7905 IC is an negative 5V regulator, meaning it provides -5V as output. The name 7905 signifies two meaning, “79” means that it is a negative voltage regulator and “05” means that it provides 5V as output. So our 7905 will provide a -5V output voltage. 

Learn more about 7905 Voltage Regulator: https://components101.com/ics/lm7905-voltage-regulator-pinout-datasheet

[hamradiodude]

Sounds good!

[circuitdigest]

Simple Tilt Sensor Switch Circuit

A tilt sensor is a sensor which opens and closes an electrical circuit when it is inclined beyond at certain angle. It can be used in tilt prevention devices, an alarm circuit and in many DIY projects. There are different types of Tilt sensor modules, for sensing the tilt the module can have a ball switch or mercury switch. In this circuit, we are using a Mercury-based tilt sensor.

[cybersecurity-omnium-gatherum]

WiFi hacker- 10 best Android & Desktop WiFi hacking apps free download

A big number of people want to know the best, free WiFi hacker tools to learn to hack on smartphones and desktops - So here is a list of 10 best Android & Desktop WiFi hacking apps and software.

[glowbugs-blog]

Noise Eliminator Perfected by Young Engineers | Hugo Gernsback’s RADIO NEWS Magazine, May issue, 1936

[cybersecurity-omnium-gatherum]

Download Kali Linux 2018.2 with new security features

Kali Linux 2018.2 is now available for download with new security features and easier Metasploit script access and fixes for notorious Spectre and Meltdown flaws.

[hamradiodude]

Beware of this guy: https://www.youtube.com/user/HamAndShortwaveRadio Bad mood and bad temper. Flips out at everyone and anything he does not agree with. He is a waste of Internet bandwidth. And ham radio is probably just not for him. It’s a hobby not a “calling”

[hamradiodude]

A Secret Message

What this is: The Obvious - Some relaxation sounds,White noise, brainwaves and tones. Use headphones and play at low volume if your into meditation. The Secr...

Using youtube videos to send anything from Ham radio SSTV to encrypted archives and computer applications all embedded inside this youtube video using youtube as a method of transmission.

[hamradiodude]

Just for fun. On Linkedin

[hamradiodude]

[hamradiodude]

[hamradiodude]

Waves

[hamradiodude]

Testing FM Broadcast amp driving with a Decade MS-100 FM transmitter. I am surprised the Decade has enough power to drive the amp with a total output of about 3.5 watts.

[hamradiodude]

That looks easy enough to modify for FM broadcast :)

[hamradiodude]

Spark Gap Transmitter.

[hamradiodude]

Loop antenna. Capacitive coupling. Military style.