Podcasting since 2005! Listen to Latest SolderSmoke
Saturday, January 28, 2023
Hugo Gernsback -- Was he Like Wayne Green?
Monday, May 30, 2022
A Modern Mechanical Television -- Nipkow Discs and Arduinos Lead to a Mechanical Color TV (video)
Saturday, May 7, 2022
SolderSmoke Podcast #237 is available: TV Show! No! W9YEI's 1939 TV. 1712 Rig. HQ-100. New SDR Rig and Book. JF3HZB's VFO Digital Dial. FIELD DAY! PSSST. MAILBAG
SolderSmoke podcast #237 is available: http://soldersmoke.com/soldersmoke237.mp3
Travelogue -- New York City! Stickers!
And about that trip to Los Angeles for the SolderSmoke Cable TV show...
Well, it fit in well with SolderSmoke's UNFORGETTABLE appearance on the Oprah book club.
And TechieTatts? Daughter worried about listeners rushing to get tattoos -- A risk we were willing to take.
https://in.pinterest.com/padmakumar10/techie-tatts/
This episode is sponsored by PartsCandy. GREAT test leads: https://www.ebay.com/usr/partscandy
Bill's Bench
Tracking down Johnny Anderson's 1939 or 1940 homebrew TV receiver.
https://soldersmoke.blogspot.com/search?q=Anderson
Working with Joh DL6ID.
Jean Shepherd's January 1973 description.
FlickLives web site and Steve Glazer W2SG have lots of info on Shep and his friends.
Internet allows us to look at TV articles that were being published.
We've concluded: Probably 1939 or 1940, using an RCA 913 1 inch CRT tube.
Lots of ideas from IRE Journal, QST, and Gernsback magazines.
Quite an achievement! Amazing how much pre-war TV progress there was.
17-12 rig
All boxed up and working DX!
Figured out how to display both 17 and 12 on the same LED. https://www.youtube.com/watch?
Drain protector for speaker cover. Copper tape to cover horrible cabinet making.
I think I need a Hex Beam.
Hammarlund HQ-100
Needed some maintenance.
I started to look more closely at it.
Got the Q-Multiplier to work -- it really adds a lot on CW.
Makes me feel guilty about all the QF-1s...
Using the 100kc calibrator with a 455 kc crystal as a BFO,
keeping Q multiplier below oscillation point.
Moved the BFO switch to the front panel. Helps a lot.
Need to fix the S-meter AVC circuitry.
Much more sturdy than the S-38E.
S-38E 1957-61 $54.95 5 tubes. AC/DC.
HQ-100 1956-60 $169 10 or 11 tubes. Power supply, regulator.
You get what you pay for.
Pete's Bench
Jack Purdum and Al Peter's new SDR rig and book (featured on the SS blog Amazon ad).
JF3HZB's beautiful digi VFO.
Backpack antenna for Field Day?
Pipsqueak Disaster -- Too simple?
Peashooter Eye Candy.
Build Something Different.
MAILBAG
James W0JKG CBLA -- Others are building MMM too!
SM4WWG // Jörgen Wonderful message. Joined GQRP. No longer "wrong."
Dennis WC8C Libraries for Max2870 board.
Jack NG2E Progress on the Right to Repair movement.
Jim K9JM Someone cutting into our business with Solder candles!
Chuck WB9KZY Correctly identified the location of the IBEW sticker. As did Dan Random.
Dave Bamford (who lives nearby) suitably impressed.
Farhan wrote to us about a video on Don Lancaster. Homebrew keyboards! Yea!
Dean KK4DAS QRP to the Field. HB2HB 40 SSB QRP I feel virtuous.
Todd K7TFC likes my ingenious use of the drain screen as the speaker protector on the 17-12 rig.
Todd had good thoughts on granular approach to homebrewing as seen in the Don Lancaster video.
Lex PH2LB HORRIFIED by my reverse polarity protection circuit. This is a touchy subject! (as is WD-40!)
Rogier PA1ZZ sending great info on SWL and numbers stations.
Jesse N5JHH -- The guy who made the IBEW stickers -- Liked the NYC stickers.
Steve N8NM has a new antenna article on his blog: https://n8nmsteve.blogspot.
Randy AB9GO Agrees -- Can't GIVE old 'scopes away.
Dino SV1IRG Liked the 17-12 rig videos.
Steve Hartley G0FUW Murphy's Law of Enclosures.
Ralph AB1OP FB on the 17-12 Rig.
Roberto XE1GXG --Our correspondent in Guadalajara. Petulant, irritable people on the computer scene.
Have some gear looking for a good home: Tek 465 'scope from Jim AL7R W8NSA. SBE Transceivers. Windsor Signal Generator. Let me know if you are interested and can either pick up or arrange shipping.
Saturday, April 23, 2022
Looking at the World Through a 1 inch Cathode Ray Tube (the RCA 913) (videos)
Friday, April 22, 2022
1942 (?) RCA Film on Tubes, Radio, Research, and Television
Wednesday, April 20, 2022
Conclusions About W9YEI's Early (1940?) Homebrew Television Receiver
Joh DL6ID and I have been exchanging e-mails in which we compare notes on the early homebrew television receiver of Johnny Anderson W9YEI. In 1973 on WOR New York, Jean Shepherd described a very memorable demonstration of TV conducted some three decades earlier by Anderson for teenage friends in Hammond, Indiana. Shep provided a lot of detail, but some of his recollections seemed a bit off; Shep was known for exaggerating or changing details to make a story better.
We have arrived at some conclusions about this project (but if anyone has more info, please let us know):
DID ANDERSON ACTUALLY BUILD A TV RECEIVER?
Yes, he did. This was a homebrew project, not a kit build and not the use of a receiver built and loaned for test purposes by the transmitting station. Anderson was an accomplished homebrewer whose basement, according to Shep, was filled with devices he had built. A QSL card sent by him in 1938 shows him using a "9 tube superhet" as a receiver. Shep describes Johnny -- over a period of perhaps six months -- gathering components in Chicago's electronics parts market, and building something in his basement. That sure sounds like a real homebrew project. A TV receiver kit was available, but it was very expensive, and Shep would have immediately denounced it as a non-homebrew project. Anderson homebrewed the receiver.
WHY DID HE DO THIS?
Why would a ham build a TV receiver at a time in which there were only a few experimental transmitters on the air, and no possibility of using the receiver to "work" other amateur stations? We tend to think of TV as a post-war commercial phenomenon. But in fact there was a lot of "buzz" about TV in the 1930s. Magazines were filled with TV articles, and with ads for courses that promised to prepare people for what seemed to many to be "the next big thing." The World's Fair in Chicago in 1933 and 1934 featured a demonstration of television -- Anderson, who lived in a close-in Chicago suburb, may have seen this demonstration. Television must have seemed like a do-able but difficult technical challenge, and would have attracted the interest of an advanced homebrewer like Anderson.
WHEN DID ANDERSON BUILD THE RECEIVER?
Shepherd describes a demonstration of TV in which Anderson tuned into experimental transmissions of WBKB in Chicago. WBKB's experimental transmitter W9XBK did not go on the air until August 1940. And Anderson told Shep that he had been calling in reception reports for a month or six weeks. That would push the date of the demonstration to September 1940 at the earliest. In September 1940 Anderson was 22 years old, and Shep was 19. (Here is one area in which Shep's recall is questionable -- he claims that the event took place when he -- Shep -- was 16 or 17. In fact he was older, but having the protagonists a bit younger made the story more intriguing.) If we assume that it took Anderson six months or so to build the receiver, that would push the start date of Anderson's build to around March 1940.
There was another experimental station on the air in Chicago: Zenith Corporation had W9XZV doing experimental transmissions starting on February 2, 1939. If Anderson had built the receiver a bit earlier, he could have been tuning into W9XVZ before W9XBK went on the air. But I think it was more likely that he started building in early 1940. I get the feeling that the Scozzari articles of October/November 1939 influenced his build.
WHAT PUBLICATIONS GUIDED ANDERSON?
Shep, in extolling Anderson's advanced, self-taught knowledge of electronics tells us that Anderson was at his young age already reading the IRE Journal, the monthly publication of the Institute of Radio Engineers. Joh DL6ID notes that Shep said that this publication was being sent to Anderson, indicating that he had some form of subscription. He may have also had access to back-issues in a Chicago library. Anderson was a serious consumer of technical material.
The IRE Journal had many articles about television, but they were highly theoretical. Typical of this was the December 1933 issue. Anderson probably also benefitted from more practical, build-related articles that appeared in publications like QST, Shortwave and Television, and Radio and Television.
In December 1937 QST began a series of articles on television my Marshall Wilder.
In March 1938 CW Palmer launched a series of build articles on TV receivers in the Gernsback magazine "Shortwave and Television." See photo below.
In October 1938 QST started a series of practical build articles on TV by J.B. Sherman. This series provided circuit details on how to use three different sizes of RCA oscilloscope CRTs, including the small 1 inch 913 tube.
In December 1938 QST continued with the television theme, presenting the first in a series of build articles by C.C. Schumard.
In October 1939 Peter Scozzari launched a good series of build articles in Radio and Television magazine. See photo below.
WHAT CATHODE RAY TUBE DID HE USE?
Many of the publications of the era carried projects using 2 or 3 inch CRTs. But it appears that Anderson had a smaller, 1 inch oscilloscope CRT in his project. In his 1973 broadcast, Shep repeatedly called the CRT "tiny" and refers to it as a 1 inch tube. Shep said the image produced was green, indicating a tube built for oscilloscopes. He may have used a 1 inch RCA 913 CRT Tube. See the Sherman article in the October 1938 QST.
THE DEATH OF ROSS HULL
In the middle of all this, on September 13, 1938 radio pioneer Ross Hull was electrocuted while working on his homebrew television receiver.
Friday, April 15, 2022
TV Homebrew 84 years ago -- Tracking Down W9YEI's 1939 Television Receiver -- The CRT He Probably Used -- Please Help Find More Info
Thursday, April 14, 2022
W9YEI's Homebrew 1939 TV?
Tuesday, April 12, 2022
John Stanley Anderson W9YEI -- Shep's Friend Who Homebrewed a TV Receiver in 1938
After graduation from Hammond High, Johnny went to work as a chemist at the local steel mill. On April 11, 1941, Johnny enlisted at Fort Benjamin Harrison in the U.S. Army, serving through WWII until November 27, 1945. On June 4, 1955, he married Jane H. Vanstone.
Johnny later moved to Munster, Indiana, and continued working at Inland Steel, where he held a variety of technical positions. He passed away on January 29, 1984, at the emergency room of Hammond's St. Margaret Hospital after suffering from neurogenic shock. At the time of his death, Johnny was an electrical technician at Inland Steel's quality control center. He was buried at Elmwood Cemetery in Hammond. From: https://www.findagrave.com/memorial/173124396/john-stanley-anderson
Monday, April 11, 2022
Early Television, Jean Shepherd, Homebrewing, and Hack-A-Day
Hack-A-Day has an article about early (1930s) television. I was immediately reminded of a January 1973 Jean Shepherd show on WOR New York in which Shep talks about a kid in his neighborhood who built a very early television receiver. You can skip to about the 18 minute mark for the homebrew radio and television stuff.
In the 1973 show, Shep identifies the builder as John Anderson. The Flicklives web site lists the hams who lived around Shep in Hammond Indiana. Among them is John Stanley Anderson W9YEI. That's him.
Shep was born in 1921 and in the show he says this all took place when he was 16 or 17. So that would place these events around 1938. We see that on February 2, 1939 W9XZV -- the experimental station of Zenith Chicago -- went on the air with television. In August 1940 W9XBK, the experimental TV station of WBKB Chicago went on the air. That station was the one Johnny Anderson used to demonstrate TV to Shep and other friends.
Once again, Shep really captures the spirit of homebrew radio and the way it really captivates teenagers. He also explains -- very well I think -- the difference between true homebrew radio and kit building.
I really wish we had more details or pictures of W9YEI's TV receiver. I tried looking in the IRE Journal, but I couldn't find anything. Anyone have more info on this receiver or ham homebrew TV projects from the late 1930s?
EXCELSIOR! 73 Bill
https://hackaday.com/2022/04/10/retrotechtacular-a-diy-television-for-very-early-adopters/
https://soldersmoke.blogspot.com/2008/07/best-jean-shepherd-ham-radio-episode.html
http://www.flicklives.com/index.php?pg=318
https://www.earlytelevision.org/w9xbk.html
Tuesday, March 9, 2021
Taking Care of an Old Analog Machine -- The Scanimate
Thursday, June 18, 2020
You must join the CONSTRUCTOR CRUSADERS
Wednesday, August 20, 2014
Happy Birthday Philo Farnsworth!
Thanks to Bob Crane (and Garrison Keillor):
It's the birthday of Philo Taylor Farnsworth, the inventor of the television, born in a log cabin in Beaver, Utah, in 1906. He conceived of the basic elements necessary to transmit a visual image while he was still in high school; later, at Brigham Young University, he began his research in earnest. He co-founded Crocker Research Laboratories in San Francisco when he was just 20 years old, and the following year, in 1927, he transmitted his first image: a straight line. Investors wanted to know when they would see financial returns, so at his first demonstration for the press in 1928, he transmitted the image of a dollar sign. This earned him the first of about 165 patents.
Farnsworth appeared only once on his invention: He was the mystery guest "Dr. X" on the game show I've Got a Secret in July 1957.
.......
I liked Paul Schatzkin's book on Philo: "The Boy who Invented Television": Here you can read chapter one for free:
http://soldersmoke.blogspot.com/2008/08/philo-t-farsnworth-radio-hero.html
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
Sunday, January 22, 2012
Some unbridled Australian enthusiasm... (Two Videos from Oz)
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, August 8, 2011
The Picture You Heard in SS 136 -- FROM SPAAAACE!
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, July 12, 2008
UK Amateur TV: KNACK TO THE MAX
Here's the link: http://www.batc.tv/channel.php?ch=1