W1JKS's Ham Radio Blog

I'm always up to something in Ham Radio, sometimes I even blog about it!

Posts Tagged ‘Homebrewing’

The Orgainizing of a Junk-box

Wednesday, December 2nd, 2009

Gathering all the parts that I’ve been able to is only half the battle.  It does absolutely no good if you can’t find what you’re looking for.  ”Phase-One” of organizing involved three sets of those little plastic drawers — actually each had 30 small drawers and 15 larger drawers.  While I did manage to get a lot of stuff into labeled drawers, the variety of parts far out-numbered the number of drawers available, so what to do now?  ”Phase-One-Alpha” — I had a pack of those little manila coin envelopes and found that the bottom two inches of  a cereal box worked great for storing those.  Even still, finding what I needed and knowing what I had was still not always easy.

On to “Phase-Two” — I had five plastic hobby boxes (clear plastic with dividers, about 14″wide x8″ deep x 2″ high).  I used these initially to sort out and inventory parts for kit’s I built last spring (Elecraft KPA100 and KAT100).  About a month ago I started using these instead of the coin envelopes.  I was bummed when I went back to Home Depot and found that they stopped carrying them. I finally figured out that the fishing section at Walmart sold similar boxes so I picked up some more.

I’m able to see what I have fairly easily and lay my hands on things pretty quickly. Now if I could learn to control the chaos of my workbend and assembly bench areas, I’d be in good shape!

The Gathering of a Junk-box

Tuesday, December 1st, 2009

I’ve been at this hobby now for over two years and have gathered a decent supply of “the basics” — that is, if I get the inkling to build some neat looking circuit that I’ve come across, there’s a fair chance that I have most of what I need.  Of course I have a variety of passives (resistors, capacitors, inductors, toroids, crystals, etc.) the basics in semiconductors (common small-signal transistors and diodes), and a few basic integrated circuits (power supplies, op-amps, 602/612 mixers, etc.).    I have a couple local options (Radio Shack and You-do-it Electronics) but most of this gathering has been from online sources such as:

  • The Toroid King – I’ve placed multiple orders here…toroids, of course, but also transistors, fets, mixers, varactor diodes, NPO caps and trim caps. Excellent service. PayPal used for payment.
  • Dan’s Small Parts and Kits – currently closed for a few months (so the website is effectively “shuttered”).  Dan’s offers a unique and always changing assortment of parts you might not find anywhere else and many of the basics that QRP homebrewers might be looking for.  The order process is anything but streamlined so be prepared to spend some time putting your order together.  But I thought is was worth the trouble given the uniques offerings made available.  Be sure and check out the “close outs and special deals” site as well.
  • Electronic Goldmine – lots of “grab-bag” style offerings.  A fun way to get a bunch of parts, though sorting them out took a while…and sometimes you’re not exactly sure what you got!
  • Hendricks QRP KitsPolyvaircons and magnet wire.  I also bought and built the BLT Plus Z-Match Tuner.
  • NorCal QRP ClubCrystals on the standard QRP calling frequencies.  Also bought and built the (now retired) Stinger Singer frequency counter kit.
  • Palomar Engineers – Ferrite beads that fit over RG-58 Coax — used for “choke baluns”

Probably a few more I can’t recall at the moment, but that certainly represents the bulk of it.  For me, this parts-gathering endeavor has mostly been done with no specific project in mind.  Only a general idea of what’s good to have around when the urge to melt solder strikes!

Learning CW

Tuesday, December 1st, 2009

Since even before being licensed in Spring 2007, I’ve been struggling to learn the code at a rate sufficient to be useful in real life QSOs.  I’ve been on-and-off using a software program called Just Learn Morse Code and I seem to have gotten stuck on the 31st character (out of 44 total — the letter B as it turns out) in my latest training push at 13 WPM with an 18 WPM character speed.  Not that the letter B is that hard to get down, but my brain just looses it with so many different characters coming at me.  I also have a bad habit of not letting go of a letter I don’t get instantly…which usually causes me to miss the next 2 or 3 letters that whiz by.

Today, I found a new piece of computer software called Morse Machine that takes a different approach.  New characters start coming at you pretty quickly, and before you know it, you’re up against the whole set of characters. Well at least that’s how it was for me.  Morse Machine is different from JLMC in that it doesn’t go on until you get type in the correct character, repeatedly sending if necessary.  After going at it for 5 or 10 minutes,  it becomes apparent (from the bar graph) which letters are shakier than the rest.  The other difference with MM is that the minimum character speed is 20…so right out of the gate, you’re hearing characters at real world speeds.

Anyhow, I’m determined to keep at it and get through this.  I want to join the QRP CW crowd, since homebrewing rigs and antennas is so high on my “favorite facets” list.

About W1JKS

Sunday, November 29th, 2009

Originally licensed in May 2007 as AB1HJ (no-code amateur extra), changed to vanity call W1JKS in August 2007.  In these two+ years I have:

  • Built and operated an Elecraft K2 kit and many options — most of the first two years QRP only; added the 100W option in time for Field Day 2009.
  • Joined the Central Mass Amateur Radio Association, CMARA, and participated in the 2008 and 2009 field days as the 40m co-captain.  Ray, KM1D, and I operated tag-team style: Ray on CW and me on phone.
  • Participated in three November Phone Sweeps contests. This year only 42 QSO as my voice was shot even before the contest started.  I really really need to figure out how to use voice recording to save my voice!
  • Received the Worked All States award.  All phone QSOs.  All with my “QRP-ish” only K2, though technically not QRP at 15W.
  • Set up wire antennas in the woods behind my house: a 40 m vertical with three raised radials, and an 80m inverted v with apex at ~25 ft. Both for use with ladder line feed line.
  • Gathered a respectable “Junk Box” of electronic parts from various sources, and a decent library to provide information (and inspiration) for homebrewing and experimentation.
  • Started learning Morse Code…but I’m still not feeling ready for an on-the-air CW QSO.
  • Made many new friends!

73,

de W1JKS, John Samolyk, Franklin, MA, USA