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Dip Meter
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ONER Transmitter
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VCO/VFO
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Receiver – not 602
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Construction Techniques
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W9SCH Receiver
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VXO
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Ceramic Resonators & Pads
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Mixers – not IC
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Kon-Tiki Transmitter & Filter
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Crystal Sets
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SM7UCZ Field Day Receiver
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NE602 receiver ( 80/20m )
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Coils and a Regen receiver
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Pippin Transmitter
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BFO and Superhet RX ( NE602)
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Improving LM386 Audio Amp
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High Gain LM386 & RX with RA3AAE Mixer
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LM386, Transformer Winding and Quick receiver
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Playing with NE602 Mixer
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Tranceiver using LM602/612
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Grid dip osc.
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Kids projects
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2 Band receiver