Techno Swap Fest

February 28, 2015  –  9am to 2pm
National Electronics Museum
1745 West Nursery Road, Linthicum MD

Attention All Hobbyists

  • Is your shop so cluttered you can barely work on your projects?
  • Did you buy something online that didn’t fit into your plans?
  • Are you still looking for that perfect gadget, part or tool?

If you answered YES or NO to any of these questions, you need to attend the 6th Annual Techno-Swap-Fest to buy, sell and gawk at all the precious junk that other hobbyists crave.

 Here are just some of the hobbies represented last year:

  • R/C (boats, planes, tanks, cars, trains, geese, monsters)
  • Robotics (competition, combat, R2D2, micro-bots, junk-bots)
  • Electronics (hackers, makers, crackers, phreaks, HAMS)
  • Mechanical (steam engines, CNC, animatronics, whimsical)

And some of the precious stuff (a.k.a. junk) you’ll find:

  • motors, gears, tools, parts, radios, televisions, monitors
  • batteries, materials, wheels, circuits, gadgets, cases, plans
  • complete projects, never-completed projects, computers
  • electronic musical instruments, lights, models, books
  • wearable electronics, and much, much more

Door prizes will be awarded to sellers for the:

  • Most Unusual Item
  • Least Useful Item
  • Best Dust Collector

as voted by all attendees.


 All proceeds support the National Electronics Museum:

 Entrance Donation:   Adults $5, Kids under 16 FREE
 Seller’s Table:    $10 (limited number, reserve early)
 Club Sponsorship:  FREE (just send us your info)

For more information, to reserve a table or become a club sponsor send email to:

If you’d like to print a copy of this information for yourself or to help spread the word, download our

Techno-Swap-Fest PDF Brochure
And please take a look at our Sponsor List

Singing Bowl @ the NODE

Today, Alan Grover and I spent a few hours at the NODE working on the singing bowl prototype. Unfortunately, while working out the electricity we electrified the TP120‘s and probably some of the other electronic components that regulate the solenoids. Fortunately, this is not too expensive, except for the time to put the electronics back together.   One very important accomplishment was that we were able to illuminate one of the  wall warts by replace one with a more powerful amperage and wattage.

For the rest of the time we focused on how the wiring will be layed out and reworked with snap together hardware. Top – singing bowl, solenoids stacked on top of the Ikea kitchen can that will be tied to the decorative trash can and the old record player box that will contain all the electronics.


The final the objective is to snap the parts together,  plug & play.

CAC – Art@Radio

Sounds of art@radio returns to a new location and streaming effort employing several  low power radio transmitters embedded at the Chesapeake Arts Center broadcasting trans-local voices and sounds of place. Also broadcast will be excerpts from the a@r archives.  Stay tuned for more information as it develops.

This is an example of some of the sounds of Curtis Bay, south Baltimore City, Maryland. Standing just inside of the Chesapeake CompostWorks warehouse with a steamy 12 foot pile of compost on one side and an open space that expands out towards the Inner Harbor the sounds of trains moving in and out of earshot along with various industries percolating in the soundscape.