LB3TH - RF & Electronics Lab

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Recent Lab Notes

LB3TH - RF & Electronics Lab

Welcome to my RF and electronics lab notebook. Here I document experiments, projects, and adventures in amateur radio.

Recent Lab Notes

Lab Notes

Chronological documentation of experiments, measurements, and discoveries in RF and electronics.

RF power meter design

rf-power-meter

RF power meter design and vibe coding

A double balanced diode ring mixer

Not calculating because rftk has been taken off CRAN (per 2025-12-28)

0dBm reference revisited: LTspice simulations

A while back I built up a circuit intended to prototype a leveling circuit that could program the output level using a dc control voltage. Hans Summers showed such a circuit …

Oscillator, 10MHz, 74HC04

It should be possible to use an inverter to create a simple oscillator, and with a crystal it should be possible to set its frequency. This is a design that is everywhere:

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LB3TH - Erik

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