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  1. Replies
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    I rebuilt my discharge leads. Decided to “beef“...

    I rebuilt my discharge leads. Decided to “beef“ ‘em up a little for the stable release of version 2.0
    Cant have going open on me again.
    55994
    Overkill?
  2. Replies
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    Exactly right. I would agree with this as...

    Exactly right.



    I would agree with this as well. I use MG Chemicals rosin flux 835, which I keep in a small plastic bottle with a syringe applicator. I love it. A small amount applied on...
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    I realized about a day and a half after you...

    I realized about a day and a half after you started this thread that I misread it. :) im still in the denial stage of my vision going to total shit compared to what it used to be
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    Oooh! Is it me??

    Oooh! Is it me??
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    The last one we had in, I did a 3 wire power cord...

    The last one we had in, I did a 3 wire power cord install. Double check something. The polarity cap shares a ground connection with another node, if I remember correctly. It's easy to inadvertently...
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    Enzo, you have an inventory list of what you are...

    Enzo, you have an inventory list of what you are trying to sell off? is it mostly components? or do you have some bench equipment you want to unload?
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    If The Dude doesn’t want it, i need one as a...

    If The Dude doesn’t want it, i need one as a parts unit
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    I use one of these all the time at work. There...

    I use one of these all the time at work. There was a nonworking unit I got for free which I'm rebuilding at the moment. These units have been around so long and have been so popular, there has been a...
  9. I just worked on one of these amps for the first...

    I just worked on one of these amps for the first time about 2-3 weeks ago. One thing I did appreciate was they built the chassis around the huge transformers (mounted directly to the cabinet, making...
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    Dude, we just had a Splawn in last week. Same...

    Dude, we just had a Splawn in last week. Same thing. We called up, and he said he never made any drawings (schematics) of the amps. We thought the same thing. I call bullshit too.
    You're trying to...
  11. dude, that is so true.

    dude, that is so true.
  12. This is not the case with transformers, however....

    This is not the case with transformers, however. If you look at the codes on the power transformers, output transformers, chokes, and reverb transformers, they are often within a couple of weeks to a...
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    Ah haaa ha... I see. Its always open season on...

    Ah haaa ha...
    I see. Its always open season on the art kids, til you need ‘em to “photoshop” the blackface costume out of that picture from a Halloween 30 years ago. ;)


    ...
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    Doesn’t make me feel any better. Take a typical...

    Doesn’t make me feel any better. Take a typical Fender amp, B+ around 460VDC; if you you bridge that voltage to ground with and part of your body, and if your body resistance is anywhere near... lets...
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    High Voltage Safety Manual.

    Found this document from the University of Colorado (Posted on the University of Tennessee website :) ) while looking at some data on capacitor discharging and wanted to share!

    High Voltage Safety...
  16. The fault caused the following audible...

    The fault caused the following audible symptom/problems (in no particular order of severity):
    • a noticeable drop in output volume.
    • loss of high frequency response. (similar to if the tone...
  17. Nice paper. Thanks for sharing :thumbsup:

    Nice paper. Thanks for sharing :thumbsup:
  18. I usually use the transformers/chokes, as I don't...

    I usually use the transformers/chokes, as I don't have to remove anything. Since the date codes are basically standard across all manufacturers, I don't have to cross reference anything, unless I...
  19. Mysteries of the Bench: Phantom coupling in Belair (Carvin Belair)

    Here's an interesting one:

    Amp: Carvin 2x12 Belair Combo
    55850

    Issue: Customer complains of distortion and low output in the clean channel.

    After looking over the service order, I set the...
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    I've been flirting with the idea of building a...

    I've been flirting with the idea of building a small(ish) ultrasonic bath for cleaning tube sockets, switch contacts, and other hard to service contacts. Of course, this is really only practical if...
  21. I'm looking at some literature now. I'm glad you...

    I'm looking at some literature now. I'm glad you asked, because I may be mistaken about this....
    *After about 15-20minutes of scanning over through some manufacturers data and white papers, it clear...
  22. The reason he recommends 5W/750V MOS (metal...

    The reason he recommends 5W/750V MOS (metal oxide) resistors, is to protect the resistor in the event of a tube or capacitor failing short.
    If this happens, the resistor will have the full power...
  23. Years ago, I used to have a Sceptre with the...

    Years ago, I used to have a Sceptre with the original speakers in a 4x12 cab. It's one of those ol' style 4x12 cabs that are about the size (and weight) of a small fridge.
    I remember when I listed...
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    I don’t doubt that this happens. But its not what...

    I don’t doubt that this happens. But its not what happened in this case. All of the tubes were new, and it wasn’t oscillating at mains or rectified frequencies. I suspect the speaker/upside down...
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    Without listening to the audio (yet), this was...

    Without listening to the audio (yet), this was the first thing I thought of as well. I just worked on a Vibro Champ and ended up chasing down a problem similar to this. Ended up being the new 5Y3...
  26. Yeah that’s kind of wild. ‘Gotta wonder if there...

    Yeah that’s kind of wild. ‘Gotta wonder if there was some acoustic feedback getting picked up by the 2 unused speakers, and getting reflected back to the output stage and causing instability. Of...
  27. I like this idea ^^ For switching tube amp...

    I like this idea ^^

    For switching tube amp outputs, wouldn't MBB power relays be the way to go as well?
  28. Product Review: Fender Blues Junior FBJ (cream board) replacement tube PCB by MOX

    I've known about this product for a while, and withing the last couple of months, I saw it became available for purchase in the US through the seller's Reverb store:
    Fender Blues Junior FBJ (cream...
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