QRP-TRX
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My Frequency Counter from N3ZI
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Universal board
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Control board - frequency counter 1.8432MHz
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Oscillator and RF amplifier - Tubes view
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Oscillator and RF amplifier - Bottom view
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My frequency counter with LCD
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Programming adapter
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CW Keyer
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Top is keyer, bottom is buzzer and buttons
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LCD PCF8566 PCB side
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Others components of display
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Mapped elements between PCF8566 and LCD itself