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Search results

  1. K

    Which Filter Should I Use....

    You could always turn out the lights like you aren't home then practice sending CW.
  2. K

    Tube amp help...

    Kinda sounds like that mudduck HiDef is trying to say the guy is F.O.S. because of the "tube sound" statement. No way FM should ever sound one iota different through an amplifier unless it was not full quieting to begin with. One second of overdrive could kill the grid in your tube. Just a...
  3. K

    To The Average Schmuck Who Thinks He Wants A Tower

    Sorry to hear that Ed. Did you drop a DX-100 on yourself? Seriously, galvanize spray is available at Home Depot and Lowes.
  4. K

    Come join us on 3.865 Mhz

    Isn't 3865 home to some really strong data LORAN sounding crap a lot of the time?
  5. K

    Marconi's Gain Master vs. a correctly installed Starduster

    You're calling ME a muddick? I've heard your stuff. You're the duck, duck.
  6. K

    RF Sampler

    A toroid is good for lower power. You really don't need it with anything over 10 watts at 30 mhz. A turn or two around the insulated center conductor will output a few volts at 1 kw into 50 ohm terminations.
  7. K

    Hy-gain bringing back Penetrator 500

    Just busting. I use the Irb mods anyway - . -
  8. K

    1.5 KW PEP Gain-Master Modification

    .75 pf? You can walk into the room and change capacitance more than that.
  9. K

    legal height for 10/12 meter base antennas ?

    While the gain may show diminishing returns you will still get a larger shot at the horizon with more height. It will also put your RF further away from neighbors.
  10. K

    Hy-gain bringing back Penetrator 500

    There are still guys waiting for Pissweak Ed's DX-100 manual.
  11. K

    Modified Vector 4000

    If they are both vertical a scale should provide usable data. Many modeling programs do just that.
  12. K

    Front Stakehole Antenna - what will give a decent SWR?

    All the antennas you mentioned have maximum radiation right near the base. The picture shows the max radiation point right next to the cab. The azimuthal pattern will likely not be omnidirectional and it's likely a significant amount of power will be wasted. All this can be happening even...
  13. K

    Marconi's Gain Master vs. a correctly installed Starduster

    I saw that thanks. I'm proposing 2 completely identical antennas with identical feedline type and length. No room for variables. Kind of a test the test.
  14. K

    New antenna from Sirio Gain-Master

    Could be the coil antenna has a better SWR. You know how some folks think SWR is an indicator of performance.
  15. K

    Marconi's Gain Master vs. a correctly installed Starduster

    I like the idea of putting up 2 identical antennas and testing those.
  16. K

    Multi-band Low-pass Filter Kit for unfiltered amps

    I guarantee that I've forgotton more about radio than you will ever know old timer. 1993 lol. I could put a working amp on the air that would far exceed the specs you will ever get out of an RM Zitaly for about ten bux and a little time. There are people watching here and getting some...
  17. K

    Multi-band Low-pass Filter Kit for unfiltered amps

    One thing is for sure. 10 meters is going to be a real zoo from now on.
  18. K

    Lowering the dead key on a radio to drive an amp

    Doc, the configuration several here are assuming is a collector modulated AM final. It must be class C to work properly. As such the final will modulate at the same exact percentage at all power levels out when the B+ is cut down with a device which effects audio and DC power similarly. That...
  19. K

    Lowering the dead key on a radio to drive an amp

    The diodes are a little better than resistors as it's a little easier to predict power changes. They should still be bypassed by an electrolytic unless one wants to throw modulator power out the window.
  20. K

    Tektronix 465m

    I don't know about a B&K but a decent RF pickup can be fashoned out of a minibox. Put one SO-239 on one end and another on the other. Join the center conductors with a piece of RG-8 or similar inner conductor with the insulation still on it. Install a third connector. BNC is a good choice...