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Saturday, September 17, 2011

Homebrew Hero: John Rollins, W1FPZ

Ted, AJ8T, alerted me to the life and work of John Rollins, W1FPZ. As you can see from the text below, John was definitely part of the International Brotherhood of Electronic Wizards. I especially like the bit about his taking license exams in foreign languages, and about winding his own transformers in Madagascar. Great stuff. The videos about John and his workshop are really encouraging and inspirational. I laughed out loud when I heard John admit that he was surprised when one of his rigs worked the first time he fired it up. He said that he usually had to spend 3-4 months struggling to get his creations to work! Be sure to listen to the story about how John caught a Navy helicopter with his Vee beam. Thanks Ted, and thanks to Bruce, W1UJR, who took the time to make these wonderful videos.

Here are videos:

http://youtu.be/EV9ljdHLqLg



From John's QRZ listing. This was written by Tim, W1GIG. (Thanks Tim!):

John passed away on March 18, 2008. It was 11 years ago that Bruce Kelly asked John to take over the Amateur Radio column in the OTB as Bruce himself was winding down. John was a man of many talents and had a most interesting life. Because he was always so busy helping others, he rarely took time to talk about himself, so I am going to take this opportunity to tell you a bit more about him.

John was born in Guatemala of American parents where his father worked for United Fruit Company (think bananas). At an early age, his father died of malaria and his mother moved the family back to New England. He also lived with an Aunt and later with his much older brother, an airline pilot, who lived on Long Island. As a teenager John discovered radio and his brother bought him a $5.00 two tube regenerative radio kit to build. John built the kit, but it was another 6 months before he got another kit for the power supply. With the help of a ham who lived nearby, he got the radio working which opened up a whole new world for him. John was in High School when his brother went with him into NYC to test for a ham license at the FCC Field Office. For the next couple of years he was active on 40 M. CW using the regen receiver and a Hartley oscillator.

At this point, WW II got in the way. John enlisted in the Army and was trained in radio repair, shipped off to New Guinea, and assigned to be a telephone lineman. The Army moved John steadily North to the Philippines and then to Japan where he was finally sent back to the States for discharge. John enrolled at the University of New Hampshire where he discovered his love of geology. He liked it so much he went on to get a Masters at the University of Nebraska and several years later, a Doctorate also from the University of Nebraska. He continued to work for Chevron exploring for oil in Africa, Madagascar, Spain, Denmark and many other countries including the US.

While he was in college, John remembered his love of radio, but unfortunately his ham license had expired, so he went back in 1954 to test again receiving the call W1FPZ which he held ever since. Later, he tested for his ham license in Madagascar (in French) and in Uruguay (in Spanish). Not many of us have tested for our licenses in three languages! While he was in Madagascar he built many of the transmitters that are still in use at his home. He even wound his own power and filament transformers to get the voltages he wanted.

John also discovered that he was an excellent pistol marksman, but that his results could be substantially improved by reworking the guns themselves, so he taught himself to be a gunsmith. His skills at woodworking, carving, machining, precision casting of bullets and loading target shells were such that this became a major hobby business for him which he pursued right up to recent months.

John was a survivor. While in the Army he survived a major brush with a 3,300 volt power line and later a plane crash while in Africa. Since small planes were the only way for John to get to his job sites, he decided that he’d rather trust his own skills as a pilot than rely on the brush pilots that the oil company had hired. Back in the States, recuperating from his injuries, he got a private pilot’s license, then went on to a multi-engine commercial license with full instrument ratings. Just before he retired, he was working out of Denver and flying his own twin engine Queen Air to Maine to work on his retirement home. He even flew from Maine to the AWA conference one year picking up Marshall Etter, W2ER from Long Island on the way.

Preparing for retirement, John and his wife Liz doubled the size of their new home in Maine. As part of the project, John wanted reliable ham communications with his friends around the world. Limited by normal power regulations, he decided to build a BIG antenna. His final choice was a horizontal V beam aimed at the Southeast. The beam legs were 1,100 feet long and supported on three 100 foot towers. Looking for wire strong enough to span the distance he ran across an ad for #6 phosphor bronze wire run by Marshall, W2ER who had salvaged the wire when he was closing the RCA site at Rocky Point. The two men became fast friends and co-conspirators. Marshall provided quality parts left over from RCA and John, using his metal and woodworking skills, customized the parts to suit his projects. The result was a long series of radio projects that he gave to friends with the caveat that they were required to use them on the air in AWA events.

John always had a fascination with the products of Jerry Gross of NYC. He built a Gross replica transmitter for Marshall who used it for many years. Parker Heinemann, W1YG found an original Gross and had John restore it along with the receiver, station monitor and antenna tuner. They set up an entry in the 1991 AWA contest that exactly duplicated a Gross add from the 30’s and took first place. After the conference, John got a call from Bill Orr who offered John his Gross if John would restore it. That transmitter is part of John’s home station.

Not satisfied with the Hartley oscillator, John discovered that if he used the Colpitts circuit with a split stator condenser and grounded rotor, he could eliminate the hand capacity effect. One of his last projects was to set up the tuned circuit for me and share several of his other construction secrets. The circuit is rock stable on 40 meters.

Thanks for the opportunity to fill you in on some of the less well known aspects of John’s life. It was an honor to know him and he will be missed by all.


Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Friday, September 16, 2011

An MFJ Cub and a Piper Cub

I was very happy to get this e-mail from Jeff, KO7M. Jeff has been using his Cub transceiver with his Piper Cub airplane. Very nice.
-------------------------------------------------
Hi Bill,
Long time no see! A while back I picked up a Kindle and have really enjoyed having an electronic way to tote around my Sprat PDF files and books. I decided to download a copy of Soldersmoke on the Kindle and re-read it and have enjoyed that very much. I am now reading your other book (just started) Contra Cross and look forward to enjoying that one as well.
Not much happening in the melting solder department, but I am working with an old National SW-3 regen receiver that I picked up on eBay. I am building a power supply for it and hope to have it on the air soon. Yeah, I know... I am from the dark side and enjoy regens. :)
We are having a stretch of nice weather out west and I have been flying as much as I can get away with as a result as it only lasts so long, eh? I flew up to the San Juan Islands and took the "Cub" transceiver with me up to Orcas Island camping a few weeks ago and had fun shunt loading a chain link fence. Made a few local contacts on 40 CW.
The cloud formations off the south end of San Juan Island the next morning were really cool! Check out the photos attached.
Hope all is well with you and your family. Take care, my friend.
73's
Jeff Whitlatch - ko7m



Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Thursday, September 15, 2011

9 Volt Superhet with Russian Sputnik Tubes

Wow! Now that's what I call a Manhattan breadboard! Joe Sousa has an excellent article on a broadcast band superhet that he built with Russian rod-type tubes, the same kind of tubes that flew in Sputnik.
http://www.radiomuseum.org/forum/sputnik_9v_superheterodyne_tube_radio.html
Lots of other great homebrew projects on this site also. Thanks to Bob, WA1EDJ, for alerting us to this.
Joe's research may be of use to those radio fiends among us who are feverishly building their Sputnik transmitters. October 4 is almost upon us! Onward Fellow Travelers!

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Wednesday, September 14, 2011

Bud Waite, W2ZK, Antarctic Ham Hero

I really blew it in SS137, and in the original version of yesterday's blog post. I can't believe I actually reported that McMurdo Base was named for McMurdo Silver! This is like some weird self-inflicted payback for all my April 1 hoaxes. Sorry guys. McMurdo base is unfortunately not named for McMurdo Silver.

OM Armand, WA1UQO, came to my rescue! He provides a wonderful story (a TRUE story) about a ham who actually did have some Antarctic terrain features named for him. And deservedly so. Be sure to read the story of W2ZK in the links below.

By the way, we see here two additional examples of strong, distinctive names in the radio world: Armand Hamel and Amory H. Waite. Thanks to Steve "Snort Rosin" Smith for reminding me of another one: Philo T. Farnsworth. (Billy and I have long had plans for a kids novel built around a character named Excelsior G. Whiz --- the G stand for GADZOOKS!)

Hi Bill!
Listened to Soldersmoke #137 Sunday evening and was intrigued by the McMurdo Silver piece. It immediately brought to mind another Ham that was associated with Antarctica and had a Point of land and four islands named in his honor. His name was Amory "Bud" Waite (W2ZK). There was a nice write up about him in the November 2009 QST Vintage Radio Column by K2TQN. There is also a wealth of information about him on the Antarctican Organization website. I have a fond spot for Bud even though I never met him. As a novice in 1975 I responded to an advertisement in QST for a used Heathkit TX-1. My first transmitter! Bud was selling it as a favor for the widow of a SK. Had a really nice conversation with him one evening and he mentioned that he had once been on an expedition with Admiral Byrd! WOW! Little did I realize then that he had been one of the three men that had rescued Byrd from a forward camp. The story is amazing and can be found on these links. The first link is a video of a presentation that he gave to a New Jersey radio club in 1974. It's a little long but well worth the effort. You can see what McMurdo Sound looked like when he revisited it during the IGY (knew you would love that!). Anyway thought you would like to read about someone who really had the Knack. If you are looking for nominees for the Soldersmoke Ham Heros Hall Of Fame, I nominate Bud Waite ( and Doug DeMaw and Wes Hayward and Jean Shepherd). By the way, I still have the Heathkit Apache and hope to get it back on the air. As always keep the solder flowing and smoking and the podcasts comming.
73's
Armand (WA1UQO)

......................................

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Tuesday, September 13, 2011

McMurdo Silver -- A Man with The Knack

In the latest podcast I talked about McMurdo Silver. I noted that many radio pioneers (and many modern-day radio wizards) have very strong and distinctive names. This guy's name is clearly in that category. Here is a 1929 bio on OM McMurdo:
http://durenberger.com/resources/documents/MCMURDOSILVER0629.pdf

And here is some additional info. From http://hhscott.com/e_h_scott_2.htm:


E.H. Scott had several competitors. The most significant among them was a dashing young genius named McMurdo Silver. Silver was a continuous contributor to technical articles to Radio News magazine (the predecessor of Popular Electronics) throughout the 1930's. He was a polo player, gun collector, and is said to have been quite a bon vivant. Formerly the president of Silver-Marshall, Inc., he set up the McMurdo Silver Corp. and began building custom high-fidelity receivers in competition with Scott.

While good, his receivers were never quite the equal of Scott’s. One of Silver’s most famous owners was Dr. Lee DeForest, inventor of the vacuum tube. DeForest owned a Silver Masterpiece V and praised it in the final chapters of his autobiography. Throughout the 1930s, Scott’s and Silver’s advertisements would do battle trying to “one up” the other’s in technical achievement. Features were stolen and lawsuits initiated. Finally, Scott won the battle and bought out the failing Silver in 1940. Scott then introduced a new, bottom-of-the-line receiver and designated it as the Scott Masterpiece. I do not know if the gesture was meant as a tribute to his archenemy or to rub salt in the wounds. Silver eventually committed suicide in 1947.

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Sunday, September 11, 2011

Jupiter In the Morning

Jupiter is high in the early morning sky now, and the weather is starting to cool off a bit here. Here is the configuration of the Galilean moons that I saw on September 11. This is from the Sky&Telescope on-line Jovian moon display.

I've even been able to do some "sidewalk astronomy" in the style of guru John Dobson: I have the telescope set up on my driveway, and I offer the pre-dawn dog walkers a look at Jupiter and Galileo's moons. They are always very pleased. It is a nice way to start the day!

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Saturday, September 10, 2011

SolderSmoke Podcast #137


http://soldersmoke.com/soldersmoke137.mp3

10 September 2011


Earthquake! Hurricane! Tropical Storm!

The Heathkit HW-7 -- An Undeserved Bad Reputation

Over-the-counter saltpeter
Movie review: Green Hornet, Captain America
How many 2-Bs? (11,571)
Ubuntifying dead laptops
Get the SolderSmoke blog by e-mail

Replacing a diode ring mixer with a diode...

...then trying the NT7S MOSFET detector
Where is boatanchor wizard Walt Hutchins KJ4JV ?
GREAT NAMES IN RADIO: MCMURDO SILVER
Sputnik update
Lew McCoy wrote about one of my projects
MAILBAG (with mail from Farhan and Wes)


Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Some Encouraging Graffiti

Spotted on a picnic bench in Falls Church, Virginia. Billy's eighth grade science course is focused on physics, so we took this as a good sign.

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Thursday, September 8, 2011

Pale Blue Dot



I'm reading Carl Sagan's "Pale Blue Dot." I found this beautiful video:
http://www.youtube.com/watch?v=2pfwY2TNehw

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Take a look through the Chromoscope!

On this site you start out with a 360 degree image of the Earth's night sky. You move around using the mouse and you can zoom in and out. (I've zoomed in a bit on Orion in the image above.) Then the fun begins: You can look at the sky in different frequency ranges -- from radio to gamma ray. Very nice: http://www.chromoscope.net/

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Monday, September 5, 2011

Climbing a REALLY Tall Tower



This is the kind of thing that causes me to stick with sling shots and wire antennas. The comments added to the YouTube video were kind of funny -- most were in the vein of "Dude, not for a billion dollars!"

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20

Friday, September 2, 2011

Carl Sagan on Ham Radio and Extraterrestrial Communication

"Stars" by M.C. Escher

I read this on the train this morning and immediately wanted to share it with my fellow radio amateurs:

"And what if we receive a message? Is there any reason to think that the transmitting beings -- evolved over billions of years of geological time in an environment vastly different from our own -- would be sufficiently similar to us for the message to be understood? I think the answer must be yes. A civilization transmitting radio messages must at least know about radio. The frequency, time constant, and bandpass of the message are common to transmitting and receiving civilizations. The situation may be a little like that of amateur or ham radio operators. Except for occasional emergencies, their conversations seem almost exclusively concerned with the mechanics of their instruments: it is the one aspect of their lives they are certain to have in common."

From "The Dragons of Eden" by Carl Sagan.

Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"http://soldersmoke.com/book.htmOur coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmokeOur Book Store: http://astore.amazon.com/contracross-20
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