John,
When I e-mailed Paul, W1GHZ about boards for his 222 transverter a week
or two ago, he said the Toko helical filters and the 5W power module
were the "unobtanium" parts. He said he was working on a substitute
power module, but that it "wasn't a direct replacement".
His note said that he had "a few of the boards left" but the general
tenor of his note seemed to indicate that the parts shortage was a
serious problem.
It is interesting to note that all of the 50-432 DEMI transverters are
not currently available because these are "in re-design". I bet this is
due to unobtanium parts... In reply to a note to a friend of mine, DEMI
indicated that they hoped to be back in production by late December,
Also the 432 MHz Elecraft transverters were not available for a while
due to parts shortages (but back in production now).
Dave/K8CC
John Kemker wrote:
> Does anyone know exactly what components are no longer available? I'm
> *really* interested in putting together something for 1.25 meters.
>
> --JohnK
> 73 de W5NNH
> 10X 75371/M&M 117/SMIRK 6185/Six Club 285/TRA 2499/Norcross 228 F&AM
>
>
>
> James French wrote:
>
>> Hello Todd.
>>
>> Just wanted to pass this along to you to see if anyone is interested.
>>
>> I am working on a group purchase for some of the W1GHZ Microwave
>> transverter boards that Paul wrote a paper about for last years Microwave
>> Update. I have had good response so far on that count. More info about
>> the transverters can be found at:
>> http://www.w1ghz.org/MBT/multiband.htm
>>
>> I am also going to do a group purchase for some of his 222MHz transverter
>> boards that he wrote a article about in QST a few years ago that uses the
>> Ft-817 as an IF for at 24MHz. You can find out more about this at:
>> http://www.w1ghz.org/222xvtr/222.htm
>>
>> >From what I understand, a few of the components have become 'unobtaium'
>> (a phrase from Kent Britian WA5VJB) but can be substituted easily.
>>
>> So if you can, pass it along that I plan on making the group purchase plus a
>> couple of his 222MHz transverters also.
>>
>> James W8ISS
>>
>>
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>>
>>
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