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Dave Richards AA7EE

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Articole: 10

  1. A PTO Kit From Ken WA4MNT at QRPBuilder

    (Dave Richards AA7EE)

    The Soldersmoke Direct Conversion Receiver was the first time I had ever built anything with a permeability tuned oscillator (PTO for short).

  2. The QRP Labs QMX Transceiver

    (Dave Richards AA7EE)

    Note – A number of folk have mentioned experiencing difficulty leaving comments underneath posts on this blog.

  3. The NorCal 40A 25th Anniversary Edition

    (Dave Richards AA7EE)

    With many of the projects described in this blog, the idea to build them had been in my head for a while (often years) before it was finally acted on.

  4. The Wilderness Radio SST-20

    (Dave Richards AA7EE)

    NOTE: In the following post, I’ll be referencing component designators according to the original schematic, which is in the SST manual, available here, on Ken WA4MNT and Karen KF4EEL’s QRPBuilder website (check out their kits).

  5. The SolderSmoke Direct Conversion Receiver

    (Dave Richards AA7EE)

    Well gosh.

  6. Another GM3OXX OXO Transmitter

    (Dave Richards AA7EE)

    After finishing the two-transistor “Jingy 40” regen, I was looking for a little transmitter to use with it.

  7. A Daily-Use Vintage High Impedance Headset

    (Dave Richards AA7EE)

    I’m not a collector of vintage headsets. 2 years ago, I purchased a high impedance Western Electric headset for listening to crystal sets.

  8. For Part 15 Enthusiasts – Some Very Worthy SSTRAN AMT3000 and AMT5000 Mods

    (Dave Richards AA7EE)

    Back in 2010, I became interested in legal micropower broadcasting under the FCC Part 15 regulations, and assembled an SSTRAN AMT3000 kit transmitter for the AM broadcast band.

  9. “The Jingy 40” – A Two-Transistor Regen

    (Dave Richards AA7EE)

    Or “The One-Transistor Regen That Turned Into A Two-Transistor Regen” with thanks to G3XBM and N0WVA.

  10. A Near-Minty Vintage Headset and a Book on Building the “Ultimate Regen”

    (Dave Richards AA7EE)

    No new construction projects here, I’m afraid, and none planned for the foreseeable future, though I have made some exciting and worthy acquisitions.