Curtis 8044 keyer chip

[WildBlue]

I have been looking high and low for a Curtis 8044 (16 pin) Keyer chip. I
can't seem to find one anywhere..

Anyone have any ideas?

Joe
AG4QC

[Caveat Lector]

Try MFJ

Company
Curtis Electro Devices - see MFJ

USA

Products and Services
COMPONENT>INTEGRATED CIRCUIT; MORSE CODE>KEYER;
Notes
Curtis 8044 and 8044ABM keyer chips are being sold by MFJ. They have a small
quantity priced at $19.95.

FROM URL:
http://www.arrl.org/cgi-bin/tisfind?case=on&patt=MORSE+CODE%3EKEY

--
CL -- I doubt, therefore I might be !

"WildBlue" <Jo...@cyberbest.com> wrote in message
news:QoQ6f.45$XE2.3...@news.sisna.com...

[Larry Gagnon]

If you need a replacement the other poster gave you the details. But if
you want a MUCH more powerful keyer chip, for less, try
http://www.k1el.com

Larry VE7EA

[AG4QC]

Thanks to everyone.. I called MFJ and they didn't have a replacement chip...
This is for a 422 keyer I bought off E-Bay Of course, it was suppose to be
working .. But it had a blown keyer chip.. It's on it's way back for a
refund.. <shrug>

Yeah, I used the K-10 chip in a QRP rig a while ago. They have a nice
product and it's small.. Actually I have the battery version of the K-12,
(using a watch battery) mounted in a mouse that I use for QRP.. Talk about
cool and easy to do!...

Joe AG4QC

"Larry Gagnon" <laga...@fakeuniserve.com> wrote in message
news:pan.2005.10.24....@fakeuniserve.com...

[gb]

"AG4QC" <Jo...@cyberbest.com> wrote in message
news:Sjf7f.47$Gp3.2...@news.sisna.com...

> Thanks to everyone.. I called MFJ and they didn't have a replacement
> chip... This is for a 422 keyer I bought off E-Bay Of course, it was
> suppose to be working .. But it had a blown keyer chip.. It's on it's way
> back for a refund.. <shrug>
>
> Yeah, I used the K-10 chip in a QRP rig a while ago. They have a nice
> product and it's small.. Actually I have the battery version of the K-12,
> (using a watch battery) mounted in a mouse that I use for QRP.. Talk about
> cool and easy to do!...
>
> Joe AG4QC

Well MFJ did not tell you the whole story (typical of them BTW)

They do have the Curtis 8045ABM (28-pin chip) that can be adopted to the
product. Some older 8044 chips (14-pin) do appear from time to time.

gb

[gb]

"WildBlue" <Jo...@cyberbest.com> wrote in message
news:QoQ6f.45$XE2.3...@news.sisna.com...

MFJ / Curtis 8045ABM Key on a Chip Applications notes
http://www.mfjenterprises.com/man/pdf/CK-8045ABM.pdf

w9gb

[wpwh...@gmail.com]

I just pulled out an old keyed with that chip on it, I'm trying to fix it but if i can't give me a shout and an offer in a month or two ???
wdw...@bigpond.net.au

the markings on the chip are exactly below:

CURTIS
8044AMB
9140

[Jerry Stuckle]

Ah, old memories. A quick google search brought up:

http://users.ox.ac.uk/~malcolm/radio/8044print.pdf

Should give you some information on the chip. No idea of where you
could get one, though.

--
==================
Remove the "x" from my email address
Jerry, AI0K
jstu...@attglobal.net
==================

[Allodoxaphobia]

On Mon, 24 Oct 2016 18:32:56 -0700 (PDT), wpwh...@gmail.com wrote:

> I just pulled out an old keyed with that chip on it, I'm trying to fix
>it but if i can't give me a shout and an offer in a month or two ?

A MONTH OR TWO!?!?!?
Jeeesh! Google groopers!
The thread is ELEVEN YEARS OLD!

[Michael Black]

On Mon, 24 Oct 2016, Jerry Stuckle wrote:

> On 10/24/2016 9:32 PM, wpwh...@gmail.com wrote:
>> I just pulled out an old keyed with that chip on it, I'm trying to fix
>> it but if i can't give me a shout and an offer in a month or two ???
>> wdw...@bigpond.net.au
>>
>> the markings on the chip are exactly below:
>>
>> CURTIS
>> 8044AMB
>> 9140
>>
>
>
> Ah, old memories. A quick google search brought up:
>
> http://users.ox.ac.uk/~malcolm/radio/8044print.pdf
>
> Should give you some information on the chip. No idea of where you
> could get one, though.
>

I think it's another opportunist, via google groups.

It sounds like he's finally going to try to get the keyer going, and if
he can't, he's offering to sell the IC to the previous poster, who I
guess was looking for one.

Since there isn't much more involved than the IC, I'm not sure how one
determines that the rest of the circuitry is at fault (but can't be fixed)
but the IC isn't.

But since he didn't quote the message he was replying to, and the original
message must be quite old, who really knows?

Michael

[Rob]

When it is really the IC that is defective, and can no longer be obtained,
it is probably easiest to use the housing and paddle to build a new keyer
based on the Arduino Nano (K3NG keyer).

[Rob]

Edmund H. Ramm <dj...@posteo.de> wrote:
> In <slrno0vd20...@xs9.xs4all.nl> Rob <nom...@example.com> writes:
>
>> [...]

>> When it is really the IC that is defective, and can no longer be obtained,

>> [...]
>
> Hasn't "Most Famous Junk" bought out Curtis some years ago? Probably
> wouldn't hurt to ask them.
>
> 73, Eddi ._._.

Yes, that is what is written on internet. I presumed that asking
over here means that MFJ no longer has them in stock either.

Well, that Arduino keyer can do a lot more anyway. A friend nearby
has built one and he can even connect a PC keyboard instead of the paddle,
and it has memories etc.

[Michael Black]

No, you're missing the point. Ten years ago, someone wanted to know where
to get the IC. And there were suggestions, including buying from MFJ.

The original poster likely is no longer interested, either giving up on
the project or having found what he wanted.

The guy who resurrected the thread is looking for a customer, he wants to
sell his IC. SO he doesn't care about replacements, he's hoping someone
will buy from him.

Michael