All posts by Jeff

Electrical engineer, tinkerer, maker.

Self-quarantine Sale! Geiger Counter Kits are 20% off for the next 30 days!

With the spread of COVID-19, many folks are stuck at home for a variety of reasons. This is a great time to practice social distancing (Seattle, we got this), stay home, be safe, and work on those projects you’ve been putting off.

For folks looking for a fun new project, Geiger Counter kits are 20% off for the next month. The full bundle (kit + case + SBM-20 Geiger tube) is normally $99.95, but for the next 30 days it will be $79.95 + shipping.

You can place an order here. Be sure to select the full bundle to get the sale price!

Supplies are limited!

Mike and Key ARC Swap Meet March 7th, 2020

The 39th annual Mike and Key ARC Swap Meet will take place on Saturday, March 7th, 2020 at the Washington State Fairgrounds in Puyallup.

This is one of my favorite ham radio events in the Seattle area and I’ll be there again this year, hopefully with a seller’s table (still waiting on confirmation).

Edit: I won’t be attending after all. Seattle has been significantly impacted by COVID-19 and King county is discouraging people from attending events with large groups of people.

Rescue Shield Kits (PCBs + components) are back in stock!


I sold out of Rescue Shield kits just after the holidays. Fortunately, new PCBs and components arrived last week. Hooray for no back-ordered components this time! What used to be the norm is now the exception. (Technically, green LEDs did ship a week later than the rest, but as I was still busy soldering boards it didn’t affect the overall lead time to produce kits.)

I’m happy to announce that kits are back in stock now.

You can order one on the Rescue Shield kit page.