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69771Re: [softrock40] Ensemble II

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  • John Greusel
    Nov 4, 2012
    • 0 Attachment
      Junius,

      If by problem you mean the reversing of the ground connection on the transformer (really no big deal) then no. Those earlier models were wired correctly. However they are crystal based (or at least the 6.1 and 6.2 were) and had too much harmonic output and are considered undesirable for any practical transmitting. Additionally they have no frequency agility so you're stuck with 48 khz or 96 khz bandwidth depending on soundcard and also you're stuck with whatever portion of the band that comes with the crystal Tony sent. I wouldn't bother building a 6.1 or a 6.2- too limited. On the other hand a 6.3 was the precursor to the Ensemble RXTX and is a quite good unit. It can be used on all the bands by changing the PA/Bandpass board which are interchangable. The problem is that Tony doesn't sell the PA kits anymore so you can buy the additional sets for the other bands. You can however incorporate the  6.3 into the self contained "Cube" transceiver and have a very nice portable tranceiver. The Cube can be purchased assembled or as a complete kit with or without the required 6.3 softrock. Bottomline- for the little money the newest RXTX costs I would not invest much time in a 6.1 or a 6.2. I built a 6.2- used it on WSPR for a couple days and threw it in a drawer. Hope this explains the options a little better.

      73s

      John 
      KC9OJV
       



      From: junius fox <jfox05@...>
      To: softrock40@yahoogroups.com
      Sent: Sunday, November 4, 2012 7:28 PM
      Subject: Re: [softrock40] Ensemble II

       
      
      John, With all of the comments regarding the RXTX, it was natural to assume I have one.  I was referring to the ensemble II.  However, I do have one of the earliest RXTX kits that I have yet to assemble.  I am wondering if the earlier kit has the problem of the recent ones??
       
      Junius
      ----- Original Message -----
      Sent: Thursday, November 01, 2012 7:01 PM
      Subject: Re: [softrock40] Ensemble II

       
      Junius,

      I may have falsely assumed you were talking about the Ensemble RXTX not the 6.3, 6.2, 6.1. The earliest versions were rockbound. If you have a crystal instead of an SI570 then you'll want to buy a new kit. 

      John
      KC9OJV
       



      From: junius fox <jfox05@...>
      To: softrock40@yahoogroups.com
      Sent: Thursday, November 1, 2012 6:36 PM
      Subject: Re: [softrock40] Ensemble II

       
      
      Oddly enough John, I happen to have the RXTX kit I  purchased many moons ago.  I think I bought it when it first came out.  Have there been many changes since???
       
      Junius
      ----- Original Message -----
      Sent: Wednesday, October 31, 2012 8:37 PM
      Subject: Re: [softrock40] Ensemble II

       
      Good work Junius,

      It's always a good learning experience when we make a mistake but nevertheless painful.
      Now's a good time to start an RXTX while it's all fresh in your mind!

      John
      KC9OJV
       



      From: junius fox <jfox05@...>
      To: softrock40@yahoogroups.com
      Sent: Wednesday, October 31, 2012 6:50 PM
      Subject: [softrock40] Ensemble II

       
      
       
       
       
       
       
      ----- Original Message -----
      From: Alan
      Sent: Wednesday, October 31, 2012 11:22 AM
      Subject: Re: [softrock40] Re: Ensemble II output

       
      Hello All,
      After much confusion regarding my testing of the Ensemble II,  Alan pointed something out to me about a voltage measurement problem.  I revisited the point where I didn't get the voltage expected.  I took a close look at the value of t he resisteer I had in the slot.  It was anything but whaqt it shouold have been e.g. 10k.  I have scads of those, so I replaced the culprit, and not I have a great working Ensemble II.
          I want to thank everyone who offered their help.  It is a great forum.
       
      Junius W5HIR







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