[Amps] using a scope to time relays

[Mike]

But what do you do if you do not understand Morse Code?

Mike

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
Behalf Of k6xx at juno.com

Use your normal CW keyer. Place the paddle next to something so it sends a
continuous stream of dots. Nice 50% duty cycle and adjustable rate. No RF
involved.

Worked for me when I did a similar measurement with vacuum relays...


73 de Bob, K6XX

Date: Mon, 25 May 2009 12:25:08 -0600
From: "Steve Flood" <kk7uv at bresnan.net>
Subject: Re: [Amps] using a scope to time relays
To: <amps at contesting.com>
Message-ID: <88B4B5EE595F49A597E056A036D66DAC at STEVES>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
	reply-type=original


>From: "Mike Schelly"
> This might help...
>
> http://w8ji.com/relay_timing.htm
>
> http://w8ji.com/relay.htm
>


Thanks Mike.  That is exactly the relay timing circuit I am using.  Now I 
just need to check the timing and adjust as needed.
His method for measuring the time delay appearts to use a little circuit to 
key the exciter.  I would rather make sure my relays are properly timed 
before I start making any RF.  Or am I misinterpreting his setup???

Steve 



------------------------------

Message: 11
Date: Mon, 25 May 2009 14:56:37 -0300
From: "Carl" <km1h at jeremy.mv.com>
Subject: [Amps] 813  bias
To: <amps at contesting.com>
Message-ID: <015f01c9dd62$282cfbe0$6700a8c0 at DAVES>
Content-Type: text/plain;	charset="iso-8859-1"

The full spec sheet will also give you typical operating values for Class
AB, B, and C. Its sometimes less stressful than digging over ideal curves
which need tweaking anyway in the real world.

http://frank.yueksel.org/sheets/079/8/813.pdf

Carl
KM1H

------------------------------

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