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[AMPS] LK500-ZB Amp Supply

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Subject: [AMPS] LK500-ZB Amp Supply
From: (Pete Smith)
Date: Wed, 10 Feb 1999 15:27:09 -0500
At 10:44 AM 2/10/1999 -0600, Roy Koeppe wrote:
>I don't have that info anymore. But put your VOM on say 5 amp scale, DC, and
>use it to pull up the amp's relays with. See if it kicks up violently at
>first, and then read the holding current. At any rate, it is way too high
>for a direct connection to rig. Make a solid state relay driver or pull the
>amp up an alternative way.

I'm not familiar with this amp, but the problem on an SB-220 was solved
very nicely with a 220-ohm 1/2 watt resistor in series with the relay
control line.  Alternatively, a transistor switch keyed by, say, 12 volts
from the transceiver is very easy to build in.

73,  Pete N4ZR
Loud is good

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