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Author Topic: Interface for TS-440S  (Read 1862 times)
KU4FP
Member

Posts: 3




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« on: November 28, 2002, 07:57:23 AM »

Looking for the:
        IF-232C Interface
        IC-10 Interface IC Kit
for the Kenwood TS-440S...
anyone know of a possible source..Huh
             
             tnxs,
         Russ / KU4FP
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K0JPJ
Member

Posts: 6




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« Reply #1 on: November 29, 2002, 12:19:32 AM »

There have been a number of articles written both in
publications and on line for very good substitutes
in lieu of the highly priced factory parts.

I built my first interface in 1992 from a article
circulating the BBSs.  It uses a MAX-232 chip which
for years was at every radio shack.  I suggest doing
a search on "Max232" and seeing what you find.  I do
know a Russian digital op has a diagram and parts
list on his website for almost an indentical version
of mine.  I saw it several months ago while looking
for something else.  I failed to bookmark it.

I loaned my original printout of the '92 interface to
someone and it did not come home.  

Here is the URL for a diagram and information in
Spanish:  http://www.qsl.net/py4zbz/tutsstv23.htm

Do a search with Copernic or similar high grade search
engine and you find tons of stuff on the MAX232.  I
saw interfaces for Icom and Yeasu before finding this
one while ago.

Also remember you will need to add the two memory ICs
inside the rig.  I'll try to find the ID on mine.

The 440/450/et al work very nicely with a computer.  I
used a 9v battery for the power supply and it would
last almos two months.  I built mine on perf board and
even with a 2 kw amp a foot away I had no problems at all.

Hope this helps.  

73,

Frank.... K0JPJ
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KU4FP
Member

Posts: 3




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« Reply #2 on: November 29, 2002, 07:26:45 AM »

Thank you very much for your reply to me query!

Turns out that The ARRL Handbook for 1999 had all the information,
parts lists, pc board, and suppliers, etc......

They were the 4040 and a 8251.
I am having a problem locating a
PD8251C, seems it is no longer available.

           tnxs,
        Russs / KU4FP

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WA9SVD
Member

Posts: 2201




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« Reply #3 on: December 06, 2002, 06:11:47 PM »

Try Jameco Electronics.  They list the 8251A for $3.99.  The other IC's are a standard 7404 TTL (74LS04 sholdd work as well, ) @ $0.29, and a CMOS CD4040B @ $0.39.
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AK5K
Member

Posts: 11




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« Reply #4 on: January 06, 2003, 09:57:25 PM »

Russ, if you're still looking for an interface, Personal Database Applications, Inc. at http://www.hosenose.com/
sells the LCU-3 (click on "Interface Hardware" down the left side of the home page). If you read the info about this interface, you'll see that the site also has the chipset needed for the TS-440S. I recently purchased TRX-Manager from these people previously to use with another radio. I discovered they offered this interface for the 440 so I purchased it, along with the chipset, later to contol the TS-440S. I just installed it over the holidays and it works great. And TRS-Manager is good, too (and I don't work for the company). Anyway the LCU-3 plus the chipset did it for me and my TS-440S.

Regards,

Bill
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