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[Amps] Slow keying issue

To: <amps@contesting.com>
Subject: [Amps] Slow keying issue
From: Rick Stealey <rstealey@hotmail.com>
Date: Tue, 27 Jan 2009 14:30:35 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
The responses so far don't really mesh with the evidence Bob, NX5M presented:

> Although the relay was closing instantly the power output of the amp was
not really kicking in until after the first or second letter of my call
was sent.

He says the relay (presumably in the PA) is closing instantly.  Tony, K1KP 
presents a solution that seems to be appropriate for speeding up relay
switching for cw keying speeds, something usually deployed to get relays
to switch in the 5-20 ms timeframe.  But Bob says his rf is delayed so 
much that he can see the 60 watt driver power on a wattmeter, which to 
me seems to indicate his delay is MUCH longer than 20 ms.  

Bob, could it be that your relay contacts in the amp are contaminated? 
Would it be convenient to get in there and run some paper over the contacts, 
coated with alchohol or DeOxit? 

Rick  K2XT

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