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BBI amps, anyone heard of them?

Discussion in 'General CB Services Discussion' started by CowboyCody, Jun 11, 2013.

  1. CowboyCody Member

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    #1
  2. AudioShockwav Extraterrestrial Admin Staff Member

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    Another Class C Cb competition amp with no bias or filtering.

    BBI 370 Peak
    BBI 105 AVG

    X force 390 Peak
    X force 120 AVG

    X force is making more power.

    Without a current meter you can not tell how many amps they are drawing, but it looks from the vid that the BBI Amp is pulling the supply down more than the X force, drawing more current?

    What is that extra current doing?

    Not seeing it on the wattmeter.

    Making more heat?


    Bulldog meter.
    Made by Carl, N9EFJ
    Not a true peak reading wattmeter, uses a passive capacitor added to the meter to provide a peak reading.
    Harmonics?
    How is he telling it is making harmonics, I did not see a spectrum analyzer anywhere on that test bench to tell anyone that either of the amps are spewing anything.
    Not even a scope.
    What is the price difference?
    Lots of questions that need answered.
    I will say that the example shown has nice soldering on the board.

    You decide.

    73
    Jeff
     
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  3. CowboyCody Member

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    Thanks for your reply I had a lot of the same thoughts, and I would have liked to see more test equipment also. I couldn't find a website, thought maybe someone here would know something about them. Mostly I thought it was interesting. The way he has the fans set up and the compact size would be nice. Other than that I have no opinion on them.
     
    Last edited: Jun 12, 2013
    #3
  4. 850-Idaho Member

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    I have not tried his own design amps but do have a Messenger 500 that he added 4 more transistors to. It does 850 am and 1000 sideband and gets my numbers called back quite often. I know of a few people that run his design and are happy. He also fixes lots of transistor and tube amps for lot's of people.
     
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  5. n0zna W9WDX Amateur Radio Club Member

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    Will stick with my good old fl2100b and al82
     
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  6. 850-Idaho Member

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    Whatever works for you, thanks again for the test questions.
     
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  7. gator-4200 Member

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    I can tell this guy is very professional and his opinion should be respected.

    Just look at the quality of his jumper cables
     
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  8. paws264 Active Member

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    No-no-no, it's the 8877 sitting behind the collectible Bulldog Watt Meter

    .
     
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  9. Shockwave Sr. Member

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    You can tell by the way it was carefully placed a quarter inch from falling off the shelf to make it in the picture that it's probably a dud. The 8877 can easily be converted into a paperweight. Feed the cathode without raising the filament above RF ground or over dissipate the grid and say bye bye. It's got plenty of gain to destroy itself if misused or if Eimac is having a bad decade like the 1980's when they sold thousands of defective 8877 tubes.
     
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  10. Mr BBi New Member

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    Well here this should help. :) this is from when I tested the amp, back when I built it.

    2pill test brian injoy - YouTube
     
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  11. 9C1Driver Well-Known Member

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    When you come up with a nice regulated class AB amp you will be on to something. A good AB amp is hard to find these days.
     
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  12. dxhound Active Member

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    I would like to see a DC current meter, voltage meter and power meter all in one shot. That will be the true test of linearity and performance. A Spectrum analyzer shot out to the 5th would be nice as well.
     
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  13. Mr BBi New Member

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    I have built in class "b" and ab1,ab2 and 1a. but I do it all here is a Ameritron I did about a month ago for a guy in spain. I built a nice little 4cx350b box this last weekend. anyways u all have a nice night :)

    Ameritron al-82 fully loaded, bbi - YouTube
     
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  14. Captain Kilowatt Professional Amateur Staff Member

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    I am quite familiar with class a, ab1, ab2, b, and c but what is class 1a? :D
     
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  15. Mr BBi New Member

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    good point... what is 1a? lol a1 is what i was talking about.. :censored:
     
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