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Saturday, October 14, 2017

SolderSmoke Podcast #200! 17, Knack Nobel, QCX, 630, UHF, Fessenden, TROUBLESHOOTING

DL3AO 1950
SolderSmoke Podcast #200 -- TWO HUNDRED!!!!-- Is available

http://soldersmoke.com/soldersmoke200.mp3

-- Old friends on 17 meters.  

-- Another Knack Nobel in Physics.  

-- Hans Summers' QCX transceiver:  $50 IS THE NEW 10 GRAND! 

-- New Bands!  630 and 2200 Meters.  BIG ANTENNAS! 

-- Nuke Powered QRP.  No joke! 

-- The Challenge of UHF.  Not for the faint of heart. 

-- Reginald Fessenden, Father of Phone. 

PETE'S BENCH REPORT:   The New Simple-ceiver.  Soon to be a Transceiver. 

BILL's BENCH REPORT:  Discrete, Direct Conversion, Ceramic Receiver in iPhone Box.  

THE EDUCATIONAL PORTION OF TODAY's PROGRAM:  
HOW TO TROUBLESHOOT A HOMEBREW RECEIVER. 

MAILBAG. 


DL3AO 1950

5 comments:

  1. Great episode, lot of stuff I have just been through trying to debug my own receiver!

    (I am the guy who asked Pete about the TIAs vs the J310 amps :-p )

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  2. My dual FET DGM product detector produced first reception last night, a historical moment Ed KC8SBV

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  3. Reginald Fessenden was born here in Quebec, a few hour from Montreal (well, nowadays, in his time it likely took longer).

    The Brome County Museum has a display about him, since that's where he was born. They even have a "Fessenden Radio Day", I'm not sure if it happens every year or on the same date, but in 2016 it was July 30th.

    There is some debate about his first phone broadcast. One thing that occurred to me is that in 1906, the coherer was the common detector, fine for spark, but surely not suitable fir CW, let alone phone. If nothing else, that would limit who could receiver the broadcast.

    I don't know why Frank C. Jones name came up a few episodes go, but I'd point out that his VHF book from the early sixties, published by "CQ", is at archive.org, one of those books that fell out of copyright because it wasn't renewed. It's a tube book, except for a few accessories, but us way more recent than his earlier 5metre and VHF books, which are online elsewhere.

    Michael

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  4. Yet another great podcast - you and Pete truly are an inspiration to us mere mortals! :-)

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  5. Michael: The article in ER said something about the distribution of new detectors to replace the coherers. This apparently took place before the famous proadcast. Bill

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