Marty -
The TR-7 has an output level control allowing you to set the output from very near 0 to 120W (Drake recommended output on 20M).
It also has negative ALC voltage control. I don't know what the SB-200 ALC output is, but it's probably compatible.
73, Garey - K4OAH Atlanta
Allen (Marty) Martin wrote:
The 140 watt output of the TR-7 is kind of high for the SB-200...
Marty
----- Original Message ----- From: "Garey Barrell" <[EMAIL PROTECTED]>
To: "john" <[EMAIL PROTECTED]>; "Drakelist" <[EMAIL PROTECTED]>
Sent: Friday, April 09, 2004 7:12 AM
Subject: Re: [drakelist] TR7 and SB200
John -
The TR-7 uses a "real" relay, and should be able to key the SB-200 easily. The relay is similar to the one used in the 4 Series and the contacts are rated at 3A maximum and 1000V breakdown. The problem is with the (primarily) Japanese rigs that use small reed relays for amplifier keying.
73, Garey - K4OAH Atlanta
john wrote:
Is anyone using this combination?
I wonder if it's advisable to use an external relay to control the amp, or whether the TR7 switching can handle it as-is?
Sage advice of the Drakelist greatly appreciated!!! John
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