Just cuz....

Discussion in 'Radio Circuits, Repair & Performance' started by KL7AJ, Dec 5, 2018.

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  1. KL7AJ

    KL7AJ Ham Member QRZ Page

    I just built me a 630 meter regenerative receiver, just to use up some parts and a plank of wood I had. Two J-fets and three audio transistors (actual push pull output that drives a genuine speaker. Built entirely without a schematic....constructed on the fly and designed as I went along. And it works!

    I like doing this stuff...and it's been too long since the last time I did it. Photos tomorrow ifn' I remember.
    W1TRY, KD8DEY and N5CM like this.
  2. KL7AJ

    KL7AJ Ham Member QRZ Page

    regen1.jpg regen1.jpg
    W1TRY and K7TRF like this.
  3. K7TRF

    K7TRF Premium Subscriber QRZ Page

  4. KL7AJ

    KL7AJ Ham Member QRZ Page

    Well, it ain't purty, but that's the charm. HI!
    W4KJG likes this.
  5. K6CLS

    K6CLS Ham Member QRZ Page

    Wow, from scratch, I'm impressed!! Love the "speaker box".
  6. KD8DEY

    KD8DEY Ham Member QRZ Page

    No LM386's handy ?
  7. K7TRF

    K7TRF Premium Subscriber QRZ Page

    Agreed, the speaker box is nice but I really like the homebrew variometer with what looks like an old solder spool as the inner inductor form.
  8. KL7AJ

    KL7AJ Ham Member QRZ Page

    I do have a stash of those, but that's cheating. :)
  9. KL7AJ

    KL7AJ Ham Member QRZ Page

    I added permeability tuning! Photos at 11.
  10. W4KJG

    W4KJG Subscriber QRZ Page

    Eric. -- I wish you wouldn't have posted this! :p

    Last night I brought my pristine old Halicrafters S-118 in from my work bench in the garage. What a bummer. I've owned it forever and didn't realize that it has a gap from 420 to 495 kHz. :(

    I used PSK Reporter to check out 600 meter activity. Now I'm hooked! Now I gotta build a converter and a transmitter.

    Anyway, thanks for the fun thread. Oh, and thanks for your OO story elsewhere about KL7DIL.


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