[CW] Anyone have data on the old Curtis keyer chip?

[Paul Carreiro, N6EV]

At 12:45 PM 1/5/2003, John, WB5OAU wrote:
>I have a beautifully crafted keyer made from the Curtis 8044
>keyer chip. It has started to malfunction in that the Weight function
>when enabled, latches the output.
>
>Is there any datasheets, or pointers to same that might help me
>debug this nice HB keyer?

Hi John.. I just scanned and uploaded the datasheet and schematic
for the chip.  I have used this chip in the keyer I homebrewed since
the mid 80s.  I've only had to change the battery a hand full of times
amazingly.

Here are the links to the files. Be forewarned, I left them high resolution
so you could print them.  They average about 1.3MB each.

http://www.montecarloss.com/n6ev/Curtis8044_DataSheet1.bmp    Front page of 
data sheet
http://www.montecarloss.com/n6ev/Curtis8044_DataSheet1a.bmp  Closeup of pin 
layout
http://www.montecarloss.com/n6ev/Curtis8044_DataSheet2.bmp    Page 2 of 
data sheet
http://www.montecarloss.com/n6ev/Curtis8044_DataSheet3.bmp    Page 3 of 
data sheet
http://www.montecarloss.com/n6ev/Curtis8044_DataSheet3a.bmp  Closeup of 
schematic on page 3
http://www.montecarloss.com/n6ev/Curtis8044_DataSheet4.bmp    Page 4 of 
data sheet
http://www.montecarloss.com/n6ev/Curtis8044_Schematic.bmp      Separate 
schematic

Unfortunately, my server is running slow at the moment.  I'll contact the 
host to get
the problem resolved ASAP.

Good luck, 73 es ZUT / ZAO

Paul, N6EV    FISTS #1407