----- Original Message -----
From: <k7...@comcast.net>
To: "drakelist" <drakelist@zerobeat.net>
Sent: Thursday, January 02, 2014 11:49 PM
Subject: [Drakelist] TR-4CW Etc.
My TR-4C manual shows V6 and V7 without tube shields and yet
the sockets have the provision for shields. To shield or not
to shield - that is the question.
I use a 3 1/2" 12VDC fan affixed to the rear of the final
cage to help with cooling. Thanks for comments.
Joe k7mks
The short section of shield around the tube base is
often enough by itself so some designers use it alone.
Adding a full shield does not improve things and causes the
tube to run hot.
--
Richard Knoppow
Los Angeles
WB6KBL
dickb...@ix.netcom.com
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