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Monday, June 22, 2015

Pete Puts His Zia in a Box

 
Wow, Pete really knows how to pack a lot electronics into a small box.  (He claims that he does this to justify the $250000 CNC machine!) I remain very jealous of that cool display panel. 
  
 
  






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, June 21, 2015

Why "Q" for Transistors?

Steve Silverman provides a possible answer:



"There are claims that, after initial chaos, eventually the letter Q was chosen because of the popular TO18/TO39 case styles."


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

Saturday, June 20, 2015

Another Great Rig (and Video) from Peter Parker VK3YE



Peter Parker has a double dose of The Knack:  Not only is he a great rig builder, but he is also a very skilled teacher.  His videos provide really excellent descriptions of how he selects, designs, and modifies the stages that make up his magnificent rigs.  You can learn a lot from these videos.  Thanks Peter.  

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

Friday, June 19, 2015

Why are relays marked "K" on schematics?





Our official SolderSmoke etymologist and lexicographer Steve Silverman explains:

Bill

    Here is some ham radio/electronics trivia
    In the days when amateur radio used short range spark transmitters, multi-station relays were used to move a message across longer distances.  At the end of each transmission, a "K" was sent, which told the receiving operator to commence his relay to the next station. Hence the use of 'K" to designate a relay in a schematic diagram, and "end-of-transmission" for CW operators.  And hence the American Radio RELAY League

73
Steve Silverman
KB3SII  ... .. ..


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

Thursday, June 18, 2015

Progress on Pete's "ZIA"


It is practically SPARKLING!   Beautiful job Pete.  I'm glad you are actually boxing this one up! 

Pete has many more pictures of this project here: 
http://www.n6qw.com/TIA.html

He also notes that there may have been some sub-conscious Knack wisdom at work when I dubbed his rig "The Zia."   I was thinking strictly in terms of language and ethnic heritage:  TIA stands for Termination Insensitive Amplifier.  But in Spanish it means "aunt".  But in Italian Aunt comes out as Zia.  So Pete's should be a Zia, right?  Capisce?

Well Pete puts an electronic twist on it:

"Once again you are spot on with ZIA (With  Z the electronic symbol for Impedance).  Thus Impedance (The symbol Z) Insensitive Amp. Thank You."

 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

Wednesday, June 17, 2015

20% off Sale on "SolderSmoke" and "Us and Them" Books at Lulu

Treat yourself to 20% off all print books with code SPLURGE. Offer ends June 18th at 11:59 PM.

20% off on all print books at Lulu through June 18:
 
 
Use coupon code SPLURGE
 

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, June 14, 2015

Finally! An Award for QRP DSB! VK3YE's 40-40 Award



Brilliant!   Great stuff!  Lots of fun! 
Another great idea from Peter Parker, VK3YE.

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
Designer: Douglas Bowman | Dimodifikasi oleh Abdul Munir Original Posting Rounders 3 Column