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814
Posted on Friday, November 02, 2001 - 3:24 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I got my KL40 amp today and I want to test it out on my uniden/president grant (version with push buttons). I am afraid that the radio will burn out the amp even though the radio is putting out stock power. How can I turn down the output wattage of the radio? What is the recommended wattage to drive these little amps?
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Tech181
Posted on Saturday, November 03, 2001 - 11:59 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

814,

Is this the Grant with the 4 buttons in the middle of the radio under the S-Meter and Channel indicator? Six knobs on the left hand side? If so here's the tweaks...

AM Power VR-11
SSB Power VR-8
MOD VR-12

Run the KL-40 with no more than a 2 watt dead key. Actually at 1 1/2 watts it should have a 16 watt output and swing to around 40+

Steve
Tech181
Tech181@copperelectronics.com
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814
Posted on Sunday, November 04, 2001 - 4:11 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

That is the one! Thank you! Time to whip out the screw driver now. =)
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814
Posted on Sunday, November 04, 2001 - 4:43 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

VR11 didn't seem to have any effect on the AM output. VR8 did bring down the SSB though. I wasn't able to locate VR12. But then again,I cut the modulation resistor a while ago, so I don't think VR12 would have any effect anyways.
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JYD
Posted on Monday, November 05, 2001 - 2:42 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

VR-11 SHOULD RAISE AND LOWER YOUR DEAD KEY

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