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Thought someone might want to check this out

Discussion in 'Home Brew' started by bushwacker, Jun 9, 2008.

  1. bushwacker

    bushwacker Active Member

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    1 pill 1446
    Switchable class ab/class c
    Switchable low pass filter... cutoff at aprox 50mhz
    LED power/modulation bar graph display meter made out of 7 leds..... display is adjustable inside the amp.
    Rx pre amp
    Automatic ssb

    Its made to be mounted under a radio.... the size is only 2 3/4 inches high by 5 inches wide and 4 inches deep. The switches on the front are....on/off....pre amp on/off...low pass filter on/off....class ab/class c switch



    I thought someone might want to check this out

    http://www.flickr.com/photos/27538575@N08/2561760039/
     
    #1 bushwacker, Jun 9, 2008
    Last edited: Jun 9, 2008

  2. NorthStar

    NorthStar Administrator

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    Nice
     
  3. bushwacker

    bushwacker Active Member

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  4. formulamojo

    formulamojo Active Member

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    You got enough stuff crammed in that box?

    :LOL: JK


    Nice.
     
  5. bushwacker

    bushwacker Active Member

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    theres a couple of wires that got touched by the iron LOL
     
  6. Switch Kit

    Switch Kit Active Member

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    looks good Bushy , long time no see dude. Hope all is well. (y)
     
  7. dudmuck

    dudmuck Active Member

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    whats with all the LEDs?
    they're taking up a bunch of space.
     
  8. bushwacker

    bushwacker Active Member

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    its an led bar graph power/modulation meter....... the driver IC and circuit for it is behind the keying circuit board kinda hidden from view. It works exactly like a led power meter on a cb. It lights up in increments from left to right as you modulate.
    The leds light up with increases/decreases in power or modulation just like on a radio.
    The first big red led is just power..... from there on its a power bar graph.
    I was thinkin of making a quick video of the led bar graph working before the amp is gone..


    Hey Switch...... its been awhile. Things are OK for me. Been working on quite a few bigger jobs at work and just havent had the time for cb or surfin the forums. I did read a couple of your posts on another forum... I was going to pm you and say hello.
    Hope things are going cool for you as well.... By the way... did you even get the covers off that Palomar to check out what class it is?
     
  9. Switch Kit

    Switch Kit Active Member

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    no never did Bush , IM totally looking to down grade in the power department here very soon. Cobra XL 450 (4 x 454s) just to much pull on my engine anymore , not so much that ,other then losing half my gas miledge. Seems like DX is picking up and IM just going to go SSB and get something half the size or less.

    My gas miledge just means more to me about now. IM sure you can understand. IM just looking for a small AB-1 , 100 watts would be great. Thanks for the reply.
     
  10. bigred222

    bigred222 Key Up City Radio

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    HEY take some more pics. Pics with it running. LOOKS GOOD. GOOD TO HEAR FROM YOU BUSH.
    Take Care
    BR KEY UP CITY RADIO WAVIN' IT.
     
  11. bushwacker

    bushwacker Active Member

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    Yea sure.... I still haven't got rid of it yet so I can still take some pics and vids..... provided I can pry the camera away from my daughter LOL.

    Building a 2 pill class c right now.... same idea... bolts under a radio. The big deal with this one is I want to build it high level modulation.
    The rf amp section is built , just have to build a decent audio amp and the rest of the circuit. If I can get the thing to work decently without alot of rf and audio problems it should be a real good modulating amp. Real high swing low carrier possabilites.

    But of course... thats if I can get the thing to work... I can forsee some problems but I'm optomistic. I have a few ideas.

    Nice to hear from you also Bigred.... thanks for the reply.... hope everything is going good for you.
     
  12. bigred222

    bigred222 Key Up City Radio

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    Its always good around Key up city. A little rain here and there but the sun always comes out. Good to here ya in there again Bush. Take care.
    BR K.U.C.R wavin a hand
     
  13. bushwacker

    bushwacker Active Member

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    I added some pics of the class c I'm building now... Its nothing really spectacular.... it might be a little smaller than what everyone else does, but its still nothing fantastic to look at.
    Its there is you want to check it out. Just use the links on I posted easlier to check it out.
     
    #13 bushwacker, Jun 15, 2008
    Last edited: Jun 16, 2008
  14. bushwacker

    bushwacker Active Member

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    if you want to see more... heres a video showing how the the bargraph /power meter works.The first couple of seconds is with a higher drive level to show how it displays power and modulation... then I lowered it so you can see it with low drive. I talk kinda slow to try show the bar graph going up in steps. The red light on the left is power.

    http://www.youtube.com/watch?v=r5n0jwyeZ6w
     
    #14 bushwacker, Jun 16, 2008
    Last edited: Jun 16, 2008

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