The FET (field effect transistor)
HomeBrew AD9850 Arduino DDS VFO on the Cheap!
Homebrew SSB Transceiver using an Arduino driving a DDS
CUMBRIADESIGNS X LOCK VFO STABILISER
Arduino Uno and AD9850 DDS
Homebrew 10/20/40m EFHW vertical Antenna “SOTA”
Checking Coaxial Cable Traps Using the MFJ Grid Dip Meter Adapter
4:1 balun construction
How to Test Inductor Cores.