[Amps] Re LK-450 Keying

["Edwin Karl" <edk0kl@centurytel.net>]

Can't say for sure, I have LK-500 ZB and ZC, both key the relay directly. You 
can
tell with a voltmeter on the keying line, if it's more than 5 volts or uses 
more than a few
ma. you can bet your keying the TR relay directly.

Good Luck we're all counting on you.

ed K0KL
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