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Pete Juliano
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A New Line of Transceivers ~ DifX
Transceiver Architecture ~ 2.17 [For more info on the LM373 SSB Transceiver see http://www.n6qw.com/LM373.html )   The Crystal Filter Build Out   I have been awaiting the delivery of some 1% caps and they will be arriving in the next couple of days so in th...

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A New Line of Transceivers ~ DifX
Transceiver Architecture 2.16 While I gather up some high quality capacitors to build the six pole 11.5 MHz Crystal Filter, I wanted to share more exciting news about the new LM373 20 Meter SSB Transceiver. Yes that is a photo on the masthead --Pretty Cool ...

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A New Line Of Transceivers ~ DifX
Transceiver Architecture 2.015 Lets Build the 11.5 MHz Crystal Filter ~ Part III   I re-measured the 9 candidate crystals using the G3URR oscillator only this time using the 1 Hz position for fine tuning on my SDR transceiver. The field is now down to 6 cry...

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A New Line of Transceivers ~ DifX
Transceiver Architecture 2.14 Back to the LM373 SSB Transceiver. While I take the time to re-measure the 9 crystals for the Dishal Filter, I thought I would update the LM373 SSB Transceiver project. This rig qualifies as a DifX as it is not a Bitx and the s...

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A New Line of Transceivers ~ DifX
Transceiver Architecture 2.13 Lets Build that 11.5 MHz Filter Part II   In Part 1, (2.12) we shared how we measured all 25 crystals and found a grouping of 9 that were essentially "carbon copies" of each other. I never play the lottery because of that exact...

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A New Line of Transceivers ~ DifX
Transceiver Architecture 2.12 Let's Build That 11.5 MHz Crystal Filter!   My bag of 25 crystals arrived (May 4th) and in case you are wondering what I bought here is the Mouser Part Number (See below) The one thing nice about the manufacturers specification...

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Relive the 1970's with a classic rig

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A New Line of Transceivers ~ DifX
Transceiver Architecture 2.11 A Way Forward is to Look Back. Soon it will be time for another Solder Smoke Podcast (#196) and Bill N2CQR and I hope to spend some time on "Old Time Homebrew Transceivers". Not necessarily that the transceivers themselves are ...

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A New Line of Transceivers ~ DifX
Transceiver Architecture 2.10 How to Build a 11.5 MHz Crystal Filter Method #1: Simply Purchase four 11.5 MHz Crystals at the cheapest price you can. Next build a Ladder Filter using five coupling caps of the same value. For a SSB Filter use 68PF and for a ...
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