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Search results

  1. linearone

    Have you hit the wall looking for 2879's? Here is a possible replacement

    That exact same device is sold in a few places online. Actually that's wrong. It's sold in a ton of places. I bought a few of them to experiment with. 1200 w is a bold lie no matter what the heatsink is. The point is you just can't get that much heat off the die of those transistors. I'll be...
  2. linearone

    Ameritron AL-811 problems

    If you have high voltage that's half the battle. The rest is mainly switching RF in and out and metering. The ameritron amps can suffer any and all failures just like any tube amp. The problems you find with any amp are always one or more of the following. Issues with HV, no filament v, bad...
  3. linearone

    AL-1500 2x mod

    The only real benefit of adding another tube to an amplifier and not upgrading its plate supply is that you double the dissipation of the amplifier. Not the power out. This will aid in more demanding duty cycle operation.
  4. linearone

    Mean well LRS-600-12

    Originally when @Moleculo posted the review showing the hash on the Chinese supply, they've been through a lot of changes at this point. Even the cheap ones usually don't throw any noise anymore, they figured out that they weren't working for us. The meanwell works fine for radio. I consider it...
  5. linearone

    Mean well LRS-600-12

    The mega watt are fantastic. The meanwell are fantastic
  6. linearone

    SB220 transformer, alternatives

    There is a spanking new one on ebay from Peter dahl right now.
  7. linearone

    SB220 transformer, alternatives

    There's no way you're feeling a real one amp transformer in that case
  8. linearone

    heathkit sb220

    The above advice by nomad is fantastic. The one word of caution is to heed his words and make sure that you drive it enough to give it a couple hundred watts output, maybe 20watt carrier or so. Anything less and you're going to see a wrong reading. Also make sure you peak the tune and load at...
  9. linearone

    Easiest way to view WWDX

    Ok, I did the two year. Thanks everyone! Ill probably be here for another 20 years now
  10. linearone

    Easiest way to view WWDX

    I'm with it
  11. linearone

    Easiest way to view WWDX

    Believe me I know that ads pay for this site and it's important that we view them, but on mobile maybe I'm doing something wrong, but viewing it through a browser on mobile I am completely covered in ads. I mean you click one thing on this forum and boom you have ads top to bottom that cover the...
  12. linearone

    Phantom 12 Tube

    @nomadradio is the expert
  13. linearone

    Comment by 'linearone' in media 'oneshot'

    What is this a schematic of?
  14. linearone

    Palamor TX75 Single Pill MRF455

    Usually they do about 100 to 120 w
  15. linearone

    Please share and donate to Chris Hope gofundme, stroke victim

    So one of my best friends in the world recently fell ill. He suffered an enormous stroke about 2 weeks ago. He's in the hospital right now and if he recovers this is going to be some journey. If you guys could take a minute and just look at his GoFundMe and pass it along on your social media I'd...
  16. linearone

    XForce 1KW supply voltage.

    Oh...ok. i thought you were going to fiddle with the power supply side.
  17. linearone

    XForce 1KW supply voltage.

    So what did you wind up doing?
  18. linearone

    GI46b linear, persistent AC hum on modulation.

    This is pretty funny to me.
  19. linearone

    M104C Project

    I mean yes the cheapest thing to do would be to get some tubing get some hardware get another gamma match and make it into a 4 + 4. On the other hand by the time you take the antenna down and do all the work and source all the parts yes it'll be cheaper but you could probably just take your...
  20. linearone

    Voltage drop with power supply when in use problem -

    You have a power supply issue. Buy a meanwell or better yet a megawatt brand