H. P. Friedrichs

H. P. Friedrichs

H. P. Friedrichs is the personal website of Electrical Engineer and Amateur Radio Operator H.P. “Pete” Friedrichs (AC7ZL). Besides being the headquarters for his critically-acclaimed books “The Voice of the Crystal” and “Instruments of Amplification”, the site is loaded with radio and electronics projects, insight, and commentary.


PartSim.com
PCBWeb.com

All Sites

Twitter

Follow Us