Receiver for VHF-1 Seneca?

[Glen Zook]

The receiving combination that Heath sold with the
VHF-1 Seneca was the Mohawk with the XC-2 and XC-6
converters.  The Mohawk is "unique" in the fact that
the converter band on it covers 22 MHz to 26 MHz
instead of the more common 30.5 MHz to 34.5 MHz that
National used on the NC-300 and NC-303, Hallicrafters
used on the SX-101A, etc.

Of course, if you haven't realized it, the converter
band also covers the 12 meter band!  You just have to
remember to subtract 28 MHz from the 6 meter
calibration as well as running an antenna to the
receiver!

I have owned a Seneca since 1966 and it sits as part
of my AM station.  Also have the XC-2 and XC-6
converters to go with my Mohawk.  If you want to see
some photos of this go to the K9STH website that is
listed at the end of this message.  The shack photos
link is towards the bottom of the list.

The CN series of Ameco converters used Nuivistors, but
the CB series did not.  However, even the CB series
are very good converters, especially for their "day".
I have numerous examples of both for 6 and 2 meters
although the only 222 MHz ones that I have are the
nuvistor types.

Most of the Ameco converters were set up either for 28
MHz to 32 MHz (using a 10 meter receiver gave the
first 2 MHz of either band) or for 14 MHz to 18 MHz
which made the last digit of the MHz dial correspond
with the last digit of the MHz on the 2 meter band.
However, it is very simple to change the crystal and
the number of turns on the particular coils (if
necessary) and the details are in the instruction
sheets that are available from various sources on the
Internet.

Many of the 222 MHz converters had a 50 MHz output
instead of the 28 MHz output.  This was since many of
the potential users were Technician Class licensees
and they might not have any equipment that could
receive below 50 MHz.

Glen, K9STH



--- Allen Jones <w9dz at YAHOO.COM> wrote:

Although not a Heath product, many six and two meter
operators used the Ameco line of converters.  They
used nuvistors and can often be found at hamfests and
on eBay.  If you are lucky they will be found with the
accessory power supplies that plug on to the end of
the converter chassis.  There were also models from
Parks and Tecraft.  A large number of ops homebrewed
them from articles in CQ, QST and 73.


=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco



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