Chapter 6 BUILDING A HOMEBREW QRP - QRP ARCI
2. Chapter 6, Harris Unfortunately crystal control means you must order $18 custom crystals for your favorite frequencies in each band.
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Variable Frequency Oscillators (VFOs)
www.qrparci.org4. Chapter 10, Harris minimal and unchanging. While we’re on the subject, you might experiment with substituting an LM336-2.5 volt precision Zener diode for the 5 volt diode.
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www.qrparci.org4. Chapter 14, Harris described here needs at least 250 volts to deliver 5 watts output. And because of its low energy conversion inefficiency, plan on supplying 15 watts DC power instead of just 5 watts.
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