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Search results

  1. vu2nan

    Crystal Radio with Ferrite Toroid Coil

    Broken link rectified. https://nandustips.blogspot.com/2015/07/crystal-radio-with-ferrite-toroid-coil.html 73, Nandu.
  2. vu2nan

    Another Crystal Radio with Air Core Coil

    Rectifying the broken link. https://nandustips.blogspot.com/2015/08/another-crystal-radio-with-air-core-coil.html 73, Nandu.
  3. vu2nan

    Simple Low-cost Demo Repeater Set-up

    Rectifying the broken link. https://nandustips.blogspot.com/2013/07/simple-low-cost-demo-repeater.html 73, Nandu.
  4. vu2nan

    Crystal Radio Driving A Speaker

    This is to rectify the broken link. https://nandustips.blogspot.com/2014/08/crystal-radio-through-speaker.html 73, Nandu.
  5. vu2nan

    Antenna Height Question

    I furnish feed point height from ground for antenna height. 73, Nandu.
  6. vu2nan

    Bc312m recap

    Hi Tweetybird, I suppose you've used later versions like this. Should be no problem as long as the value and voltage rating are the same. Regards, Nandu.
  7. vu2nan

    Bc312m recap

    Hi Tweetybird, They're vintage and look like this! Regards, Nandu.
  8. vu2nan

    My first Homebrew HF Transmitter

    Here's the documentation for my first homebrew HF transmitter. https://nandustips.blogspot.com/2011/02/my-first-hf-transmitter.html 73, Nandu.
  9. vu2nan

    Bc312m recap

    Hi Tweetybird, I bought a leaky, non-working, army disposal BC 312 D in the year 1976 for a then equivalent price of $ 25.00. I recapped it using Philips polyester caps and it sprang back to life. It's still going strong! Regards, Nandu.
  10. vu2nan

    Unconventional Crystal Radio Circuit

    Thank you very much, kopcicle! Regards, Nandu.
  11. vu2nan

    Coupling a commercial VHF handheld to an external antenna

    Here's my solution for a 2m rig having only an integrated rubber ducky antenna and no connector for an external antenna. Details at https://nandustips.blogspot.com/2011/02/coupling-commercial-vhf-hand-held-to.html 73, Nandu.
  12. vu2nan

    Makeshift Piezo Earphones

    Please do check this out. https://nandustips.blogspot.com/2016/10/makeshift-piezo-earphones_15.html 73, Nandu.
  13. vu2nan

    Bc312m recap

    No, it's not necessary. The capacitors you have used are already encapsulated. 73, Nandu.
  14. vu2nan

    Unconventional Crystal Radio Circuit

    Yes, it sure is fun going back to basics! Many thanks. Regards, Nandu.
  15. vu2nan

    Unconventional Crystal Radio Circuit

    There's been another update. https://nandustips.blogspot.com/2015/04/unusual-crystal-radio-circuit.html 73, Nandu.
  16. vu2nan

    Crystal Needed

    See if you can lay your hands on these! https://www.lessmiths.com/~kjsmith/crystal/dtest.shtml Regards, Nandu.
  17. vu2nan

    Another Loop Antenna Crystal Radio

    This one uses a 2m x 2m Loop Antenna. More at https://nandustips.blogspot.com/2019/10/another-loop-antenna-crystal-radio.html 73, Nandu.
  18. vu2nan

    Simple Crystal Checker

    That's nice, Crosbow. Here's my vintage model. https://nandustips.blogspot.com/2012/07/quartz-crystal-tester.html 73, Nandu.
  19. vu2nan

    Series-fed Compact Loudspeaker Crystal Radio

    This is the series-fed version of my compact loudspeaker crystal radio. https://nandustips.blogspot.com/2019/08/parallel-tuned-compact-loudspeaker.html 73, Nandu.
  20. vu2nan

    A Chance Crystal Radio Project

    Thank you very much, Road Squawker! Regards, Nandu.
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