Category Archives: Wiring Diagrams

Intro to Kit Building for Radio Amateurs by K7QO (Chuck Adams)

Chuck Adams (K7QO) makes a club presentation on Kit Building basics.  He highlights what every ham radio operator needs on his workbench to build kits or make repairs.

K7QO Chuck Adams website

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Make your own Dipole Antenna

Randy does such a good job of explaining how to make your own 10 Meter Dipole.  Get on the air… 10 meters is a fun band when the sun cooperates!

Amateur Radio Go-Box and Go-Bags Examples

Ham Radio Operators need to be ready to roll out to a crisis quickly if it requires communication support.  Are you ready to “grab and go”?  How quickly could you have a functional ham radio station on-the-air ready to support an emergency situation?  Could you support your local authorities efforts, and for how long?  Can you personally sustain yourself with food and water for 3 days of support, without being a burden on the emergency relief efforts?  Constructing your own version of a “Ham Radio Go-Box” and a “Go-Bag” might be a great addition to your preparedness efforts.  Below are some pictures of potential Go-Boxes to stir your imagination and creativity.  You might even have some of the items laying around that could be put into the effort to BE PREPARED.

GO-BOX IDEAS

GO-BAG IDEAS

How Does a Crystal Radio Set Actually Work?

Here is an excellent YouTube video from RimstarOrg that breaks down the concept of how crystal radios actually DO their magic!  Yes, MAGIC.  Radio signals are all around us 24 hours a day.  Invisible!  You can’t really touch them.  You can’t smell them.  You can’t hear them without assistance.  We don’t really feel them bombarding us.  We don’t sense those signals without some mechanical help… but they strike us with many different frequencies constantly… so let’s explore the range of frequencies we can decipher with a homemade crystal radio set!

Crystal Radios. A blast from the past!

Many of us have looked at, or even built a crystal radio set at some point in our lives. Maybe it was in our Scouting days, youth group, science class, science fair… or just to DO IT!  The circuit itself is relatively simple to wire-up.  A long piece of wire acts like an antenna.  Some configuration of earphones or speaker will let you listen to signals.  And believe it or not, the signals are all around you!  The local AM radio station should be easy to hear.  You can even build a simple pre-amp (pre-amplifier) circuit to boost the incoming signal to add extra volume and signal strength to the fun.

Let’s understand WHY a crystal radio set is sooooooo cool!  SIMPLE CIRCUIT DESIGN.  EVEN KIDS CAN DO IT!  EASY TO GET PARTS.  NO EXTERNAL POWER REQUIRED.  INTERCEPTING INVISIBLE RADIO WAVES THAT ARE ALL AROUND US.  Plus, it’s just a pile of fun!

Here is a YouTube video from WonderstruckHow who teaches us to build a very rudimentary crystal radio set with parts that are easy enough to scrounge up.

After you watch the video check out the picture gallery of all sorts of crystal radio sets that can be built in just a short time.  They are great for kids working on a science fair project (and sure beats out a terrarium!)  Some of us “Seasoned Citizens” might actually remember the paper towel tubes or Quaker Oat cardboard cans we wound the magnet wire around and even some of the commercial kits sitting under our Christmas tree!

See How a Schematic Diagram is ACTUALLY Visualized

“How to read an Electronic Schematic” by Paul Wesley Lewis

Wonderful example of how to visualize and equate the schematic diagram with the actual circuit build out.

How Do I Read a Schematic Diagram?

How to Read a Schematic by RimstarOrg 

If you are going to build a simple crystal radio, a QRP rig or even a 100 Watt HF transceiver, you are going to want to understand how an electronic schematic diagram is read.  It’s not that difficult.  RimstarOrg has a great video on understanding the basic concept of reading a schematic.

 

Multimeter Tutorial by AfroTechMods

THE BEST Multimeter Tutorial

The voltmeter… the Volt-Ohm Meter… the Multimeter… digital or analog… continuity… amperage, voltage and ohms… COME ON, MAN!  What is it and how hard is it to use in the every day life of a ham radio enthusiast or just someone working in their workshop?  Once again, Afrotechmods has an excellent tutorial on his YouTube channel for us to learn from!

 

 

What the heck is an Amp-Hour?

Battery amp-hour, watt-hour and C rating tutorial

Regardless if it’s your flashlight, your 2 Meter hand-held radio, your QRP rig, your Field Day station(s), your APRS setup, your balloon launch radio transmitter, your trolling motor, your emergency preparations or your personal GoBox… understanding how long those batteries that supply operating power will last becomes quite important.  It will also assist you in deciding what battery to select for a particular project or product.  Afrotechmods has several excellent YouTube videos on his channel that we all can enjoy!

Battery Technology Comparison by KF7IJZ

Small AGM vs A123 ALM-12V7 LiFePo4 Battery Module

Explaining USB 3.0

ExplainingComputers YouTube Channel, Christopher Barnatt, explains USB 3.0 and how it compares to USB 1.1 and USB 2.0 and data transfer rates.

Do Volts or Amps Kill You?

Does Volts or Amps Kill You? Voltage, Current and Resistance

This should be a good lesson for everyone, especially Hams that tinker and homebrew serious radio equipment.  You’d be surprised how much is too much!  Safety around radio equipment, coaxial cables, power chords, power lines, lightening storms, grounding straps and towers needs to be at the forefront of our mind.

Excellent YouTube video by RimstarOrg.

 

10 Most Popular Microphone Wiring Diagrams

HEADSET1            micdiagram2922

This is an excellent article from QRZNOW.COM showing the pin-outs for the 10 most popular microphone cables.  This QRZNOW website is a huge resource for hams everywhere.  Click article link below for full article and wiring diagrams…

10 “Most” Popular MIC Wiring Diagrams

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playwithlifeorg

4 out of 5 dentists recommend this WordPress.com site

HarsH ReaLiTy

A Good Blog is Hard to Find

BG5TLA's Blog

Just another WordPress.com site

Tinkertoytech's Blog

Just another WordPress.com weblog

KC4LMD

Chronicling my pursuit of amateur radio’s "Worked All Neighbors" award

Casey's Place

"When we try to pick out anything by itself, we find it hitched to everything else in the universe." -- John Muir

Hackaday

Fresh hacks every day

VK4JAZ

Writings about Amateur Radio

Tactical HF

I love the smell of ozone in the morning...smells like...radio.

WB5RMG : RadioActive Blog

slightly sub-orbital testing facility

73, de N2HTT

A blog about ham radio, Linux and more...

Ham Radio Blog PD0AC

Thoughts of a Dutch radio amateur

Silver Bells Blog

Truth Appealing...

CQ de WT8WV... GraHAM's Dits & Dah's

My journey in amateur radio intrigues and hobby interests

K5UNX Ham Radio Blog

A blog dedicated to things Ham Radio related

Mountain Mists...

A pleasant journey into how I see things... big and small

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