[Drake] Keyer

[The Pollacks]

Like someone else said, use the sidetone in the rig.  The other possibility
is that I believe there's a spare set of NO contacts on the relay.  Use that
to key an oscillator of choice.  (I may be wrong on that, have to look at
manual.)  Another possibility is to change the tone by changing the value of
the resistor in the relaxation osc.  I think the one in there is 3.3 meg, if
I remember.  One of mine had that resistor fail, and I used a substitution
box and selected the resistor that gave the most pleasing tone.  

I remember that I found out the resistor was bad when I used the keyer on a
different rig that had no sidetone.  I had been using it with an SB401 that
had a built in sidetone.  Had used that pair for years, so I don't know
exactly when the resistor went bad!

-----Original Message-----
From: drake-bounces at mailman.qth.net [mailto:drake-bounces at mailman.qth.net]
On Behalf Of Steve Wender
Sent: Friday, February 05, 2010 5:09 PM
To: Bill Gaines AD8P; Drake at mailman.qth.net
Subject: Re: [Drake] Keyer

Hi all,

I like  and use the Hallicrafters TO Keyer ever since I became 
addicted  to an electronic keyer and couldn't kick the habit.  That 
was almost 50 years ago.  One problem with the TO Keyer is the awful 
raspy side tone.  I tried various things to make it sound better but 
the only think that worked was an audio filter to remove the higher 
harmonics that made it sound bad.  If anyone has a better idea on how 
to make it sound better, I would like to hear about it.



Thanks,

Steve
KC5WN


.At 07:34 AM 2/5/2010, Bill Gaines AD8P wrote:
>Drake at mailman.qth.net

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