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[CQ-Contest] CW keying interface - feedback

To: <cq-contest@contesting.com>
Subject: [CQ-Contest] CW keying interface - feedback
From: "Chris Tran ZL1CT" <zl1ct@gm7v.com>
Date: Mon, 13 Aug 2007 08:03:16 +1200
List-post: <mailto:cq-contest@contesting.com>
Hello all

Thanks to everyone who offered suggestions about my keying problem with the 
old FT-101E.  I was wrong to *assume* that the 2 transistors were 
saturated - they were not - the 101E takes about 0.5mA to activate the 
sidetone osc, and about 6.0mA to activate the grid-block keying.  Changing 
the 2 resistors to 1k from 2.2k (with a +9V pull-up supply) has sorted the 
problem.

73
Chris
ZL1CT / GM3WOJ 

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