Hi All,
I followed the link in that other post to an archive of Ham Radio Magazine.
This because I too was curious about how the digital alternative for
the Drake FS4 frequency synthesizer, as mentioned in this post, looked
like in those days.
I had a very good time reading!
And also, browsing trough the rest of that copy of Ham Radio Magazine
was nice, giving a good view on that era in Ham radio.
Thanks a lot for that link - I guess I will be reading a lot more there!
But.....
I got really (historically) interested in that alternative for the FS4
after reading
I know its design is very dated and nowadays there are far better
solutions like integrated circuit DDS's etc. but still...
I searched the internet if I could find more about it.
I found a follow-up of the article, or better a letter in HRM from the
author W6NBI, mentioning additional info and a version with a 100 kHz
reference.
I could not find this additional info anywhere on the internet though.
I did find in a posting from this list that the author had indicated
not to be bothered anymore with questions about his (40+ years!) old
design .
So my question is:
>>> Is there anybody on this list who has or knows where to find this
additional info?
I hope somebody can help with this nice "Drake history". (kind of
anyway) ;-)
73's,
Henry - PA0HJA
On 12/21/2011 3:16 PM, Robert Fish wrote:
Hi Guys,
I am not sure how good the print quality is, but the entire collection
of HR magazine (or most of) has recently been made available for
download in PDF or just about any format you chose here:
http://www.archive.org/search.php?query=collection%3Aham-radio-magazine&sort=-publicdate
By the way, 73 magazine archives are also available here:
http://www.archive.org/search.php?query=collection%3A73-magazine&sort=-publicdate
I have already spent a bunch of time searching around through this
stuff. Lotsa fun.
73,
Bob K6GGO
I think the discussion is now about the expanded "preselector" dial
that came with the FS4. HR magazine had home brew FS4 in Aug 1972
issue. That article had a copy of the dial in print. That might be
where you can pick off a high resolution image if you have an origial.
I sold my incomplete set of HR mags when I purchased the entire PDF
collection. The PDF of the page that the dial is on is not that
great. OTOH you might be able to use it for a starting point to do
image restoration and enhancement.
Aug 1972 - Ham Radio (Pg. 6)
Frequency Synthesizer for the Drake R-4 Receiver
Author: Stein, Robert S., W6NBI
Sorry if I misunderstood the thread.
73,
Ron WD8SBB
--- On Tue, 12/20/11, Jim Shorney<jshor...@inebraska.com> wrote:
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