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Thread: Home Brew GS-31B HF Linear Amplifier

  1. #41
    La Rata Del Desierto K7SGJ's Avatar
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    Quote Originally Posted by KJ6BSO View Post
    Looks good. And it should fit in well here on the Island, where there's no shortage of gas discharge.
    That's why everyone was flicking their Bic. I thought they were getting ready for a concert or something.
    A clear conscience is usually a sign of a bad memory

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  2. #42
    Orca Whisperer W3WN's Avatar
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    Quote Originally Posted by K7SGJ View Post
    You're going to make them Mormons?
    Nah. That would mean he'd have to have multiple spouses. I wouldn't do that to him.
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    BAN THE DH!

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  3. #43
    Whacker Knot WØTKX's Avatar
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    Flicking the Bic is old skool... There's an app for that.

    "Where would we be without the agitators of the world to attach the electrodes
    of knowledge to the nipples of ignorance?" ~ Professor "Dick" Soloman



  4. #44
    La Rata Del Desierto K7SGJ's Avatar
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    Quote Originally Posted by WØTKX View Post
    Flicking the Bic is old skool... There's an app for that.

    Damn, I have to get out of the cave more.
    A clear conscience is usually a sign of a bad memory

    RIP ALBI-W3MIV RIP RUSS-W5RB RIP BOB-VK3ZL





  5. #45
    Island Dog Bubba's Avatar
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    That looks easy.

  6. #46
    Island Regular W3DRK's Avatar
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    OK, just a small update. The GS-35B is in place and working great. I ran it on filament only for about 2 hours, then 200ma idle current at 2KV for 2 hours, 300ma for another hour, then 250ma at full plate voltage for a couple minutes to get it good and toasty to make sure its was well gettered. After that I let it rip at full 3800-4000 volts under load with no signs of flashing over.

    Long story short, 2KW is easy on any band with 100 watts of drive and 75 watts puts me right at 1500 watts out. Perfect!

    All I can say is 2KW is hard on equipment...my watt meter gets hot, my RG8X coax was getting warm, and after a few minutes of testing various bands my oil filled dummy load let out a horrendous smell and now the SWR is too high. Oops.

    I noticed the GS-35B glows quite a bit brighter than my GS-31B.

    GS-35B_GLOW.jpg

  7. #47
    La Rata Del Desierto K7SGJ's Avatar
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    Glad you got it all figured out and up and running. It also makes a nice night lite.
    A clear conscience is usually a sign of a bad memory

    RIP ALBI-W3MIV RIP RUSS-W5RB RIP BOB-VK3ZL





  8. #48
    Administrator N8YX's Avatar
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    Nice job with the amp, and I'm glad you got it sorted!
    "Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."

  9. #49
    Tribal Elder mw0uzo's Avatar
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    Does the tube produce X rays when run at such high power? Might be interesting to put a geiger counter on the top of the amp.

  10. #50
    'Grumpy old bastid' kb2vxa's Avatar
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    No X-rays until you get up around 16KV and the tube would go south at half that. I would however like to know what's producing that eerie glow.
    "The universe is under no obligation to make sense to you."
    Neil deGrasse Tyson

    73 de Warren KB2VXA
    Station powered by atomic energy, operator powered by natural gas.

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