[TenTec] Connecting Pegasus to SB-200

[Paul Christensen]

The Pegasus uses a high-power Darlington transistor for its amp key line.
The transistor is VCEo rated at 350VDC and a maximum current of 1-amp DC.
The Pegasus is capable of switching most any DC elevated-voltage key line as
long as it is under 350 volts.  My Alpha PA-70V has a 70-volt key line and
the Pegasus handles it beautifully.

-Paul, W9AC

-----Original Message-----
From: Michael O. Hyder <N4NT@charter.net>
To: bholman@iu.net <bholman@iu.net>; tentec@contesting.com
<tentec@contesting.com>
Date: Tuesday, March 28, 2000 4:55 PM
Subject: Re: [TenTec] Connecting Pegasus to SB-200


>
>I'm not sure what the Pegasus uses to key an amplifier, but most Ten-Tecs
>use a relay.  The SB-200 may put a higher voltage and current on that relay
>(or other circuitry) than is appropriate.  A fellow named Harbach makes all
>sorts of modifications for the SB-200 and SB-220.  I have incorporated ALL
>of his modifications into my SB-220 and can vouch for both Harbach and his
>products.
>
>You can find his SB-200 modifications at
>http://www.harbach.com/reference/harpg2.htm
>
>I suggest you consider installing the SK-200 Soft Key kit to lower the
>switching voltage and current required by the SB-200.
>
>Regards, Mike N4NT@charter.net
>
>----- Original Message -----
>From: "Bud L. Holman" <bholman@iu.net>
>To: <tentec@contesting.com>
>Sent: Tuesday, March 28, 2000 8:33 AM
>Subject: [TenTec] Connecting Pegasus to SB-200
>
>
>|
>| I am looking for advice on the best way to connect a Pegasus to a
>| Heathkit SB-200 linear amp. Does anyone have any experience with this?
>| Thanks,
>| Bud Holman, WA4ASJ
>
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