Hints and Kinks
OHMS law calculator - w1vtp
Calculate THD - Steve - K4HX
Calculate PEP - Steve - K4HX
Grinding crystals-2 - kf4qkr
Ferrite Based Coil Calculator - Steve - K4HX
Scope Pickup - K1JJ - W2INR
High Voltage Parts - DMOD
Cleaning Nicotine off old radios - w3jn
A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing - Steve - K4HX