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MFJ CMOS Keyer

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Nobody

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Sep 4, 2006, 1:31:13 PM9/4/06
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1) I have an MFJ keyer, no model number. It simply says "MFJ CMOS
Keyer" on the front. It has a built in paddle, of sorts. I am looking
for a schematic for the keyer. It uses a Curtis 8043 chip.

2) Does anyone have the pinouts for the Curtis 8043 chip?

Tim AA6DQ

Mart

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Sep 4, 2006, 4:42:03 PM9/4/06
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On 4 Sep 2006 10:31:13 -0700, "Nobody" <rock...@hotmail.com> uttered:

Apparently the 8044 is a "close pin for pin substitute" for the 8043

See :- http://users.ox.ac.uk/~malcolm/radio/8044screen.pdf

Hth

Mart

Nobody

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Sep 4, 2006, 11:23:08 PM9/4/06
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Thanks Mart.

Tim AA6DQ

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