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Tunable HF Preamp PCBs (March 2021)
March 11, 2021
0421 Download zip – April 2021
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April 2021

April 2021

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Detailed description of this issue HERE

Projects & Circuits

DIY Solder Reflow Oven with PID Control – Part 1 – buy the PCB here!
Make short work of soldering boards full of surface-mount components with this
low-cost and easy-to-build DIY solder reflow oven.

Programmable Thermal Regulator – Part 2 – buy the PCB here!
This month, how to build the two Arduino shields, program the Arduino, build the
water loops and tweak it to suit your needs.

Frequency Reference Signal Distributor – buy the PCB here!
If you have multiple test instruments but only one very accurate frequency reference
this project lets you share the reference without attenuating or degrading the signal.

Series, Features and Columns

The Fox Report by Barry Fox
Do something useful today

Techno Talk by Mark Nelson
Whiskers are back and killing your electronics!

Net Work by Alan Winstanley
This month, is hydrogen an alternative to fossil fuels/batteries for cars; we revisit old PE fora and how to avoid ‘Zoom shame’ if your bookshelves are letting you down!.

KickStart by Mike Tooley
Part 2: Getting started with RFID – working with cards and tags

Circuit Surgery by Ian Bell
Timing and metastability in synchronous circuits – Part 2

Make it with Micromite by Phil Boyce
Part 27: Having fun with a Micromite Plus – Part 2

Practically Speaking by Jake Rothman
Restoring old equipment – Part 2

Max’s Cool Beans by Max The Magnificent
Flashing LEDs and drooling engineers – Part 14

Audio Out
Making a Transistor Radio – Part 2

Downloads

Download the files associated with this issue HERE.

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Print, Download, CD

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