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Kit Building on the “Cheap”

Kit building “for the cheap”. Kit Building on the “Cheap”. The beginning. The beginning. Far Circuits Bitx20 Board set $25. EB7HPM ’s board layout found on the internet. The board layout reworked. After much rework.

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Kit Building on the “Cheap”

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  1. Kit building “for the cheap” Kit Building on the “Cheap” The beginning The beginning

  2. Far Circuits Bitx20 Board set $25 EB7HPM’s board layout found on the internet

  3. The board layout reworked

  4. After much rework

  5. First Contact - W4WEL in North Carolina1500 miles using 4 watts and a low dipole

  6. 2nd Kit – QRP Kits Bitx20a

  7. Not bad for $165.00

  8. Also available in 17 meter band

  9. 1 last 20 meter QRP Rig • The Bitx20 Version 3 • Semi-kit from India. This one takes a little more work • Different options available for some of the harder-to-get parts • $20.00 - $42.00 including postage from India

  10. Exciter board

  11. Linear and power supply

  12. Fully functional 20 meter ssb rig

  13. KitsAndParts.Com • RF Toolkits are Electronic Building Blocks. Most RF Toolkits include a small 1.2" x 1.9" PCB plus parts to createan electronic building block. Think of these small kits as a QRP Erector Set. • Most kits cost $8-$10.

  14. Kitsandparts.com • Universal LowPass Filter • Universal BandPass Filter • Universal Dual BandPass Filter • HF RF Amplifier • Crystal Filter • Discrete IF Amplifier - available spring 2009 • High Gain IF Amplifier • Universal Diode Ring Mixer • Universal Gilbert Cell HF Mixer • Gilbert Cell Audio Detector • Universal VFO • Universal BFO • Discrete Audio Amplifier • LM386 Audio Amplifier • Universal Voltage Regulator • Generic Development PCB • Transmit Diode Ring Mixer • 5 Watt CW RF Amplifier • 10 Watt 40+ dB gain 1.8-30 MHz Linear RF Amp • Universal PIN Diode Switches • Memory Keyer • Universal SWR bridge • SWR/Power Display - available spring 2009 • Freq Counter Display - available spring 2009 • Very Stable Freq Standard/Ref Kit (TCO) • Universal Interconnect Kit

  15. Kits and parts 40 meter CW Receiver

  16. The Future - Software Defined RadioSoftrock Lite II$10.00 (includes postage)

  17. Softrock Lite II Receiver • Tunes 48-192khz of selected band depending on soundcard • Frequency centered in the CW portion of the band • Available in choice of 160 – 15 meter bands • $10. including postage • $12 for 15, 20, and 30 meter version

  18. Softrock "Xtall+Lite" V9.0 Software Defined Radio

  19. Multiband for $45 4 Individual plug-in bandpass filter boards to cover 160 – 10 meters Remember the plug-in coil days?

  20. Electronically switched bandpass filter add-on • 1.8 MHz to 30 MHz - $13 or • 3.5MHz to 30 MHz plus 6 meter - $13

  21. What kind of kit do you want to do? • If surface mount doesn’t scare you – Softrock II Lite as a starter • If you want SSB and you like a little challenge – Bitx Version 3 • If you just want to solder – Bitx##kit

  22. Softrock lite • Probably can be built over 2-3 saturdays • $10 - $12 dollars total expenditure • Good starting point to try SDR

  23. Bitx20 version 3 • Great kit for someone that wants to “experiment” • Will need to collect parts. Most components not included • Plenty of room for “fat fingers” while building

  24. Bitx##a kit • Turnkey kit available. Everything included • 12 watts output vs 5-6 of version 3 • Professional looking case with decals

  25. Web Sites • kc0wox.com • Pictures and videos of many kits • qrpkits.com • Bitx##a kits • wb5rvz.com/sdr/ • Softrock information • Kitsandparts.com • RFtoolkits

  26. Kit Forums • Yahoo Bitx http://groups.yahoo.com/group/BITX20/ • Yahoo Softrock http://groups.yahoo.com/group/softrock40/?yguid=294830569 • Kits and Parts http://kitsandparts.com/fluxbb/

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