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  • PADDLES and KEYERS
    • Improved KD1JV SKC Keyer kit
    • Magnetic Iambic Paddle
    • Magnetic Single Lever Paddle
    • KX2/KX3 Iambic Mini Paddle kit
    • KX Single Lever Mini Paddle kit
    • KX Mini Paddle Adapter kit
    • Iambic SODA Mini Paddle
    • Iambic Piano Mini Paddle
  • Educational and Mentor Receivers
    • K8TND PlaneTalk Air Band Receiver
    • K8TND S.W. Regen Receiver
    • Sferics Receiver
  • ANTENNAS
    • QX1 Antenna & BNC Antenna Mount/Adapter
    • QBV 40m/20m-10m Switched Portable Antenna
    • BNC Antenna Mount/Adapter
  • MISC.
    • Improved KD1JV SKC Keyer kit
    • PTO (Permeability Tuned Oscillator) Mechanism Kit
    • Two PTO test boards
    • T/R Switch/LPF Adapter for Small Amplifiers
    • QRPBuilder Audio Amplifier
    • Crystal Radio Hi-Z to Low-Z Earbud Adapter
  • Projects
  • Services
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Welcome to Qrpbuilder.com

Educational and Mentor Kits

K8TND PlaneTalk Air Band Receiver

K8TND Patriot 5-15MHz Receiver

K8TND Sfer-x Receiver

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