Antenna: Helical Ant and L-match
Antenna: before make receiver
DBM In The Frequency generator
IF.455K:why tap stabilize the IF Amp Why Amplifier Oscillating in first place
IF.455K: Gain Vs Stable Several IFT Stable Conditions Estimate
IF.455K:OLD MW Radio BJT IF On stabilizing the IF amplifier
IF.455K: Design and Improvement (not start yet)
Misread CB Amplifier
Run into Wide-Band Buffer/Amplifiers
Noise Figure Mess
Audio PA
PA: 27Mhz FM TX Chain Design
PA: Exploring PA
PA: TX chain PA to Antenna
Core: evaluate unknown core
RF choke: dig SRF
RF Practice: better to know