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the rm hla and sommerkamp amps are cb amps with extras,
the basic amp is a rmkl500 with larger wattage feedback resistors, they dont have proper lcr feedback circuits to flatten gain over the hf band so drive must be reduced to keep the same output as you move down in frequency,
they are supposed to have overdrive protection and do have vswr protection,
the biasing is unregulated,

since i had to fix one for a local ham friend id say the overdrive protection dont work so well,
they can also be prone to self oscillation at certain drive levels and certain frequencies tested into a good dummyload,

a cb amp in ham clothing

<blockquote data-quote="bob85" data-source="post: 148568" data-attributes="member: 18">the rm hla and sommerkamp amps are cb amps with extras, the basic amp is a rmkl500 with larger wattage feedback resistors, they dont have proper lcr feedback circuits to flatten gain over the hf band so drive must be reduced to keep the same output as you move down in frequency,they are supposed to have overdrive protection and do have vswr protection,the biasing is unregulated,since i had to fix one for a local ham friend id say the overdrive protection dont work so well,they can also be prone to self oscillation at certain drive levels and certain frequencies tested into a good dummyload,a cb amp in ham clothing<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":wink:" title="Wink&nbsp; &nbsp; :wink:"&nbsp; data-smilie="2"data-shortname=":wink:" /></blockquote>

[QUOTE="bob85, post: 148568, member: 18"] the rm hla and sommerkamp amps are cb amps with extras, the basic amp is a rmkl500 with larger wattage feedback resistors, they dont have proper lcr feedback circuits to flatten gain over the hf band so drive must be reduced to keep the same output as you move down in frequency, they are supposed to have overdrive protection and do have vswr protection, the biasing is unregulated, since i had to fix one for a local ham friend id say the overdrive protection dont work so well, they can also be prone to self oscillation at certain drive levels and certain frequencies tested into a good dummyload, a cb amp in ham clothing:wink: [/QUOTE]

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