I’ve always wanted a Nixie Tube Frequency Counter, but one has never come up on eBay for a price that I was willing to pay. So I just made my own using the same Nixie Tube boards as the calculator project. I learned a bit about frequency counter front-ends in the process.
Read MoreCategory: Electronics Projects
Raspberry Pi Switching Power Supply Shield
There are many times when I want to power one of my Raspberry Pi projects from 12V instead of 5V. I built this switching power supply shield to make it easy to do so.
Read MoreEico 430 Oscilloscope
I bought an Eico 430 Oscilloscope, an old analog scope from the late 50s / early 60s. It’s a cathode ray tube scope, with vacuum tubes used throughout. It works amazingly well given its age, and will actually be a useful addition to the bench.
Read MoreSparkfun third hand kit – review and modifications
I’ve always wanted the Sparkfun third hand kit, ever since I saw it in their new products page. I finally bought one, and this post contains my review, as well as some modifications.
Read MoreAoyue 128 Soldering Tip Polisher Review
The Aoyue 128 is a soldering tip cleaner. It has two rotating brass brushes that clean and polish your soldering iron type. I bought it on a whim, and review it in this post.
Read MoreEico 369 RF Sweep Generator
I bought an Eico 369 RF Sweep Generator. The video covers my experiences with it, from the moment I unboxed it to when I made the first sweep.
Read MoreDIY Digital RF Attenuator
I build a digital RF stepped attenuator. It uses a PE4302 chip, along with an RGB encoder and a VFD display. It attenuates from 0 to 31.5dB in 0.5dB steps.
Read MoreSinometer VC2000 Frequency Counter Review
I review the Sinometer VC2000 Frequency Counter. You can buy one on Amazon for less than a hundred bucks.
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