They aren't expensive to buy already made. Probably not
much more than the parts and your time.
$30. from RT Systems.
$22 from Amazon
Say others on Ebay for $7.99 but they may contain counterfeit USB to serial chips.
From: Randy Elliott <ve3jpu@me.com>
To: chirp_users@intrepid.danplanet.com
Sent: Thursday, November 21, 2013 4:43 PM
Subject: [chirp_users] Interface for Yaesu 8800