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AC7ZL

5/28/2016

3 Comments

 

Episode 95 - H.P. "Pete" Friedrichs - AC7ZL

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From his first long nose pliers, at the age of six, to his private use of the chemistry lab at his junior high-school, Pete Friedrichs, AC7ZL, has had a fascination with technology, chemistry, and radio.  Often this is old but amazing technology that he recreates with the remnants of discarded objects.   Pete is a renaissance man whose study and fabrication of "simple" technology rivals that of some of America's great inventors.  He is a published author of books based on his experiments, as well as fiction and ghost stories. AC7ZL is Eric's guest on QSO Today. 

Show Notes
Listen to Podcast
AC7ZL Links:
  • HP Friedrichs Home Page
  • YouTube Channel
  • Cold War QRP: A Case of Discone Fever
  • Artisan Ideas - Radio
  • ​Pete’s First Book: The Voice of the Crystal, by H.P. Friedrichs
  • Pete’s second book: Instruments of Amplification, By H.P. Friedrichs
  • Marvelous Magnetic Machines, You-Tube Video
  • ​Pete’s authors fiction: Riley’s Way, by H.P. Friedrichs
  • Numbers, Neighbors, and Nobody's Business, by H.P. Friedrichs

Scott Adams - Dilbert - The Knack

First License: 2003, Zero to Extra in one afternoon

Amateur radio operators the first hackers and social networks

First Rig: Yaesu FT-817

Current Rigs:
  • Icom IC-178 HF Transceiver
  • Kenwood TS-520  HF Transceiver
  • Elecraft K1 - HF Transceiver Kit, 2 Band
  • ARC 5 - military surplus receivers and transmitters, WW2 vintage
  • BC348 US Government receiver for the Air Force.  First produced in 1936. 

Favorite modes: CW and digital modes

Boys’ 2nd Book of Radio and Electronics, By Alfred P. Morgan

​ARRL 2016 Handbook for Radio Communications

Tucson Gem and Mineral Show

Cuprous oxide diodes on the top of a copper pipe cap

“Crystal radio is like a sail boat - it takes you where you want to go without power”

“One energy source controlling another”

Brown amplifying relay - uses a resistive element not a switching element

Wagon Wheel - how to build one

Homemade vacuum tubes

How to make laboratory glassware

Ignition coil out of 72 Ford Pinto

Lincoln Laboratory at MIT

Welch Pump

Ugly construction electronic

Circuit board router mill

Practical Wireless Telegraphy, by Elmer Bucher

Popular Electronics Magazine, archives

HF disk cone antenna

Titan Missile Museum, Tucson, Arizona

Advice to new or returning hams: Just do it

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Yaesu FT-817 QRP HF/VHF/UHF Transceiver
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US Army BC-348 Receiver
​Vintage WW2
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AC7AL Bell Jar Audion
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H.P. Friedrich's Brown Amplifying Relay
3 Comments
Jack
7/10/2016 01:34:43 pm

Reply
Jack
7/10/2016 01:39:21 pm

Pete. I worked with the early radios as a member of the Army Security Agency. The receivers were not reliable as to frequency so we measured the frequency of the intercepted traffic using a separate freq meter". Any idea as to whether those old freq meters still exist?

Reply
Terry Ryan
7/10/2016 05:37:06 pm

always enjoyed our Qso's after smart net. To bad the gang did not stay active .

Reply



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