[CW] Care and Feeding of Semi-automatic keys - bugs

D.J.J. Ring, Jr. n1ea at arrl.net
Mon Feb 1 14:46:06 EST 2021


The incabloc jewel bearings of the Deluxe keys are non-conductive, the
non-Deluxe keys bearings can be conductive if clean but dirt gets in and
makes the continuity poor. I wrote this years ago:
https://qsl.net/n1ea/bug_care_and_feeding.txt
<https://l.facebook.com/l.php?u=https%3A%2F%2Fqsl.net%2Fn1ea%2Fbug_care_and_feeding.txt%3Ffbclid%3DIwAR00wGM2PR0QqXexBz9i2jGgQiIBvN559chNSL6fo4v3bPNQViS5IIUaAaY&h=AT0ilf1Kg76uMs_Tbv-lSQ0aKK_PxI6EuJQT5VoIuYa6wh0_Ygn5YA_VWgnDT7eXnQsDDX59PcPEp5Yt2qfQRpKG1YynJvOWjm6LLbw-F0oWq34c8TdhTKOlFw&__tn__=R]-R&c[0]=AT186O31am2aX8jeL61hMuHZVUMw4wcevatn1FMGDrzkJ0ByQiZbxiOgLyZEqxRCtJ4bh4E0bI8_0AiHFJS_1Huu_jm9o8JlVIAKY3JegIszi5mrR2sOuTTY5nEewIM0ZFvXRLCeHW6ZskSOMCVfn93Ov-Ezx1DvWbygYKHAgSwPaXCAZ4uObk445lFfz3wDesuTl1mKcwxfGUd39eYM4Q>
Care and Feeding of Semi-Automatic keys. How to set up, adjust, and send
with a Vibroplex type semi-automatic key. Includes often overlooked
problems with loose or rusted connections, bad ground contacts,
intermittent connection of the dot contact spring. INCLUDES VALUABLE ADVICE
OF "ROLLING THE WRIST" nearly forgotten method used by professional
telegraphers to avoid repetitive motion injury while sending.

73

DR
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