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SIMPLICITY OF CONSTRUCTION.  TO THAT END, WE USED THE ARDUINO CONTROLLED
SI5351 SYNTHESIZER TO DIRECTLY DRIVE THE GATE OF A SINGLE STAGE RF
AMPLIFIER, AN IRF510 METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR
MOSFET.  WITH A FEW SIMPLE CIRCUIT MODIFICATIONS, THE OUTPUT POWER OF THE
TUNA TIN S CAN BE SIGNIFICANTLY INCREASED.  MOST IMPORTANTLY, HOWEVER,
SINCE THE IRF510 IS NOW MORE RAPIDLY SWITCHED THROUGH ITS LINEAR REGION,
THIS POWER INCREASE IS ACHIEVED WITH A SIGNIFICANTLY LOWER DEVICE POWER
<  QST DE W1AW  =
DISSIPATION AND LOWER AVERAGE CURRENT DRAIN.  THE MOSFET NOW REMAINS COOL
TO SLIGHTLY WARM, DESPITE THE INCREASED OUTPUT POWER.  CONCLUSIONS AND
RECOMMENDATIONS WITH CONDITIONS EXPECTED TO IMPROVE IN SOLAR CYCLE 25, QRP
LOW POWER AND QRPP BELOW 1 W POWER OPERATION WILL BECOME MORE FUN.  THE
EXCITEMENT OF MAKING THAT MULTI THOUSAND MILES PER WATT CONTACT WITH A
MINIMALIST HOMEBREW RIG IS DIFFICULT TO DESCRIBE.  ACKNOWLEDGMENTS THE
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