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Thread: Carver 4000t Pre

  1. #1
    Forum Veteran WOPL Sniffer's Avatar
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    Screw it

    Carver 4000t Pre

    Had a request for a Total Rework of a 4000t, including recap, power supply rebuild/modification, and a remote volume kit. It was a bitch. But, it sounds nice, and it works pretty cool. The rework of the volume knob to accept the IR receiver was a trick and a half. He was fine if I wanted to drill into the faceplate, but I can't do that to a 40 year old unit with irreplaceable faces. Just got to detail, and ship.




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    I had the nations problems figured out one night while on blah blah blah........ huh?

    Big amps
    Kenner Close N Play

  2. #2
    Forum Veteran Netfly's Avatar
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    ---
    Wow. That is innovative. Next time maybe you could fit one in the rack mount handle? or lose the headphone jack. Either way it's a nice addition.
    Last edited by Netfly; 12-21-2017 at 11:24 PM.

  3. #3
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    ---I run with Scissors
    Makes me paranoid! I'd feel like I'm being watched! Heh...Heh.
    Now that your known world wide as the King of the 4000T & swamped with orders, any chance you'll tackle another pre that is not so rare?
    The PL4000 series one is the coolest looking evah. Take the challenge of making it one of the sweetest sounding? I want to try. But I don't have your knowledge & talent.

  4. #4
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    Screw it
    It would have been easier like Marco said to use a stand alone unit but "gots to do what the customer wants". I went with the IR in the knob like the CT-17. Too bad the knob just about fell apart being old as hell. Then, i chased cold solder joints, had to just about resolder every board. Then, had a loose pin in a IC socket, also the 20k pot was not exactly balanced so i had to add some series resistance so when you turned up the volume, it was balanced perfectly. On the 4000t, the knobs are plastic with an aluminum skin on it so i disassembled the knob and reworked it. The motorized pot takes up some room so i had to move some of the power supply components to the other side of the board and i put some bigger heat sinks(the biggest that would fit) on the + and - voltage regulators ...


    Huh?????
    I had the nations problems figured out one night while on blah blah blah........ huh?

    Big amps
    Kenner Close N Play

  5. #5
    Forum Veteran WOPL Sniffer's Avatar
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    Screw it
    Quote Originally Posted by Bradrock View Post
    Makes me paranoid! I'd feel like I'm being watched! Heh...Heh.
    Now that your known world wide as the King of the 4000T & swamped with orders, any chance you'll tackle another pre that is not so rare?
    The PL4000 series one is the coolest looking evah. Take the challenge of making it one of the sweetest sounding? I want to try. But I don't have your knowledge & talent.
    What did you have in mind for your 4000? I never take on more jobs than i can handle in a couple week period. Ive had this one for a month which in my book is wayyyyyyy too long but the amount of work and waiting for parts kept it here. Some disco lights maybe? Squirrel scrotum knobs???? The series 1 can be a challenge, its laid out weird and i dont believe it has plug in cards..... but let me know.
    I had the nations problems figured out one night while on blah blah blah........ huh?

    Big amps
    Kenner Close N Play

  6. #6
    Forum Veteran WOPL Sniffer's Avatar
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    Screw it
    Just shipped Big Dave's 4000t with remote upgrade. Now I'm finishing up MY stand-by 4000t which is getting the remote upgrade also but I'm not dicking around with the IR receiver in the knob. I'm putting it in the hole where the headphone jack is. I don't even own a set of head phones so no problem there. It can easily be reversed in a couple minutes if I sell it and the owner needs a headphone jack. I am also just finishing up my Newest WOPL 700B. I named her after an old girlfriend. she's got a sexy oriental name.


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    I had the nations problems figured out one night while on blah blah blah........ huh?

    Big amps
    Kenner Close N Play

  7. #7
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    Halfbiass...Electron Herder and Backass Woof
    Neat wiring....
    taking something that's already good, and making it better...........and for the knowing smiles that cross their faces.......Nando-2011...

    "Silence cannot be Misquoted"--Lazarus Short-2012 "

    " I Just Collect Smiles Craig......Cheap Smiles!-----Fishoz-2017

    "anything can be done, it's finding the easiest way that's hard"-----Bobbysdad--2014

    " Synth percussion is deadly to children, house pets and shitty power supplies"---Stephen Evans 2014

    " You have not reached the point of diminishing returns, you've just ran out of money

    " The Pioneer U-24, unfortunately, is just too expensive and rare to find. That's why I have one."--Nando-2014

  8. #8
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    Screw it
    Where OLD meets new is sometimes difficult to get nice. The transformer wires are heavy and stiff and the insulation goes POOF quick.
    I had the nations problems figured out one night while on blah blah blah........ huh?

    Big amps
    Kenner Close N Play

  9. #9
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    Screw it
    Looks like Phat Ho is a success. She's on the Dumb Bulb Test.... No issues. Burn in for the next 24 hours.... Tomorrow I rock while finishing the 4000t.


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    I had the nations problems figured out one night while on blah blah blah........ huh?

    Big amps
    Kenner Close N Play

  10. #10
    Forum Veteran marcok's Avatar
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    I'm very curious about any tech item
    Perry ,
    for the next 4000t , I suggest you to use the hole of Auto Threshold to locate
    the IR detector and to replace the Manual Threshold led with a
    bicolor led (green for auto and red for manual )
    Sorry , but I have had this idea right now .
    Ciao
    Marco

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