Michael Dunn

Michael Dunn

Michael Dunn

Michael Dunn is a former Editor-in-Chief of EDN and has been messing with electronics almost as long as he's been walking. He got his first scope around age 15, and things have been going downhill ever since. Scopes now vie with wine racks, harpsichords, calculators, and 19th century pianos for space.

Over the years, he's designed for the automotive, medical, industrial, communications, and consumer industries, as both freelancer and employee, working with analog, digital, micros, and software. Since 2000, he's run the TekScopes Yahoogroup (now on groups.io, with over 7,000 members). He is VA1XY, and was previously editor-in-chief of Scope Junction.

Areas of interest of the author: Supply Wireless RC Modeling Robots Discretes Measurement History of Electronics Power Computers and Peripherals Tools and Technologies Printed Circuit Boards (PCB) Automotive Analogue Design

Publications on RadioLocman by the author Michael Dunn:

  1. LM317 smooths but doesn't regulate
    A well known power supply circuit is the capacitance multiplier. It doesn’t regulate, but...
    28-11-2023
  2. Whipping a cheap LED PSU into usable shape
    As part of the LEDification of my house, I’m designing some wall-lighting sconces. The plan...
    11-10-2017
  3. Hubsan FPV Drone Teardown
    My lower-midrange Hubsan X4+ FPV drone got stuck in a tree in the middle of winter. We managed to...
    13-07-2017
  4. Charge-pump topology doubles voltage, breaks DC path
    I once needed a voltage doubler circuit with no DC leakage path between input and output, and ended...
    09-02-2017
  5. Tracing a transistor's curves
    There was a time when it wasn't so rare to discover an unusual, scope-like object in an...
    31-01-2017
  6. Avoid problems with multiple DC-DC converters
    Most electronics today requires multiple supply voltages – four or more rails is not...
    24-08-2016
  7. Desktop tech of 1969: under the covers of a Compucorp calculator
    Nowadays, there are endless venues for a youngster to get into programming. In the early and mid...
    11-11-2015
  8. Desktop milling machine creates PCBs and packaging
    Version 2 of the desktop Othermill milling machine is now available, and it's accurate enough...
    13-10-2015
  9. Teardown: 1966 Programmable scientific calculator
    I've taken a screwdriver to my rare and wonderful Wang LOCI-2 calculator… This...
    15-07-2015
  10. Teardown: OBD-II Bluetooth adapter
    I'm not into cars to such an extent that I have an OBD-II analyzer in my toolkit. But when I...
    30-10-2014
  11. Adaptive Schmitt trigger tames unruly signals
    In biomedical instrumentation (for example), we're sometimes faced with very noisy or...
    21-01-2014