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The RM HLA300 plus is a very good amplfier. I worked on Motorola radios for over 40 years. When I saw the original 500 amplifier used Motorola transistors. I was impressed.
It was a 60 watt transistor for class c. For AM this would be about 240 watts. The 501
amplifiers are 1446 are 70 watt...
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