[CQ-Contest] LPT: KEYING
Dale L Martin
kg5u at hal-pc.org
Thu Dec 19 11:22:36 EST 2002
I went to yahoo.com, typed in 4n25 opto isolator keying circuit and came up
with a 11 hits.
Now, I don't know what a COW keying circuit is, but maybe you can modify
what you find on yahoo to a COW keying circuit.
> I am looking for information that i had seen on a website for the
> construction of a COW keying circuit using an opto isolator 4n25 to do the
> Does any one have any information on this or a schematic.
> Tank you
> Jay Mason
> CQ-Contest mailing list
> CQ-Contest at contesting.com
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