[Lowfer] Re: New Antenna

[Frank Gentges K0BRA]

Alberto,

I talked to Crystalonics last week. The QST article exhausted their supply
of these transistors.  They made a new run of these transistors and they are
again available.  They said they still get about 5 or 6 orders a week for
these transistors for the QST project.  Do not forget to tell them that as
they have a special deal for that project, otherwise they may not want to
deal with you for one or two transistors.

I do not know of any suitable direct replacements.  These are special high
grade transistors and have not been sold in reels of 5000 although I suspect
they would like to.  :-)

If you do not want the highest performance, I make some suggestions on our
web site on using U310s or J310s in the same design with 12 volts and
different bias and you can eliminate the heat sink.  You might be
disappointed with the intermod performance as the intercept point is around
20 dB lower.  However, with 12 volts, it makes a good antenna for your LF
mobile rig.  Our web site is at <www.amrad.org/projects/lf>.

Frank


-----Original Message-----
From: BOB RIESE <riese-k3djc@juno.com>
To: lowfer@mailman.qth.net <lowfer@mailman.qth.net>
Date: Sunday, January 20, 2002 1:07 PM
Subject: Re: [Lowfer] Re: New Antenna


>That is a good question
>
>I ordered 2 of them before Christmas and
>received them within a few days. I suspect
>other devices of the same class will work
>here is Franks addr. ,he may be of some help
>I was planning to order a back up unit so I hope
>the production run has not been shut down
>
>
>             fgentges@mindspring.com
>
>Bob
>
>
>
>
>On Sat, 19 Jan 2002 18:13:16 +0100 Alberto di Bene <dibene@usa.net>
>writes:
>>Bob Riese srote:
>>
>>> this is a real easy project to build. the PC boards are from FAR
>>and
>>> total price to me
>>> came to 40 bux. Without a Junk Box probably could be done for 60 to
>>70
>>> bux
>>
>>Where did you find the CP-666 ? I contacted Crystalonics,
>>but they have sold out all those they had...     TNX
>>
>>73  Alberto  I2PHD
>>
>>
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