Kits and Projects (Demos)

As a teenager and young adult I spent many hours assembling electronic kits. My first ham radio transmitter was a Heathkit (as was the next). In addition to ham equipment I also assembled test instruments, home stereo components, computers and modems, and much more. I enjoyed kit building as much as using the devices after they were built (and in a few cases after they were repaired).

    Over the last few decades electronic kit building has fallen victim to advances in electronics, especially the advent of large scale integration. Indeed
in many US locations it is no longer possible to find a nearby store that sells electronic parts. However, radio and electronic project kits and ideas can still be found on the Internet. Some of these are of limited practical interest—perhaps only good for the fun of building them, while others continue to bring pleasure after assembly is complete.

    The original page became too long, so I split it into individual pages describing kits that I have enjoyed putting together, or other small construction projects, as well as one or two explorations that have nothing to do with soldering. Projects are listed alphabetically in the table below
—not in the order they were done. The video demos that accompany most project descriptions illustrate highlights and lowlights of the activity.

ACARS — acarsd and ACARSDeco2 software
N4YG Oscillator — DDS-based code practice oscillator kit
AD7C VFO — DDS VFO and Enclosure NTP Server — GPS-based Arduino Uno NTP Server
AD9834 — Analog Devices AD9834 DDS One-watter  QRP transceiver from Kits and Parts
ADS-B Antenna — Collinear antenna for 1090 MHz Orbitron to SDRuno  DDE to CAT for frequency tracking
Arduino Morse Keyer — First Arduino project PICkit 3— Microcontroller Programmer
Coax Continuity Tester — TTL and logic circuit software Pixie  QRP transceiver from China
Debouncing a Pushbutton — Sub-project and demo Raspberry Pi  Pi-1 Station clock
DS3231 — Real-time clock with WWVB updating Raspberry Pi Pi-3 Python keyer
EZKeyer III — Keyer kit from Four State QRP Group Raspberry Pi  Software relating to radio
Frequency Counter Kit  Crystal Tester and Frequency Counter SDR New! ARM Radio (from QST) Longwave Receiver
GPS Modules  u-blox Neo 6M and Neo M8N Soil Moisture Study  Arduino Nano Internet of Things exercise
Hilltopper - 20  QRP transceiver kit from Four State QRP Group Song of Pi New! Digital-to-analog converter breakout board
JYE Tech Capacitance Meter  Kit featured in QST Touch-sensor Paddle   Touch paddle for Python keyer
LED Progress Bar  Arduino based LED progress bar demo WB9YBM Oscillator  Analog audio oscillator (CPO)
Magic Eye  1.5 inch color OLED simulation of magic eye tube WWVB Decoding   Arduino with WWVB receiver (60 KHz)
MFJ Dip Meter  Trying out the MFJ-201 XBee Friends   Arduino XBee communications
M.O.A.K and NetMOAK and Redesign  — “Mother of all Keyers” + ZZRX-40   40 meter receiver kit from Four State QRP Group

    See also: “Lloyd’s Demos YouTube Channel

Projects linked from this page are intended for entertainment only. The author makes no claim as to the accuracy or completeness of the information presented. In no event will the author be liable for any damages, lost effort, inability to carry out a similar project, or to reproduce a claimed result, or anything else relating to a decision to use the information on this page.