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Before you have your Amp worked on ...

Discussion in 'Bad Dog Cafe' started by String Tree, Oct 17, 2020.

  1. String Tree

    String Tree Doctor of Teleocity Ad Free Member

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    image.jpeg image.jpeg image.jpeg image.jpeg Take it apart and inspect it.
    Take TONS of pictures.
    Show him the Pics.
    Now he knows that YOU know how it should look when you get it back.

    I take it a step further, I remove the Chassis and leave the rest at home.
    Amp guys can now actually Guess what is going on and, if you are lucky, point out what they are going to do.

    This has paid dividends for me, I hope it does for you as well.

    Now, today's discovery:
    Twenty years ago I bought what they said was a Bass Amp. They had no idea it was an Accordion Amp, I thought it was a guitar amp.

    It needed help and I blindly bought all new Tubes.
    The Power Tubes are 7591's. Kind of expensive.
    It didn't work so well. No Power and what did come out made me want to cry.
    That was 15 years ago, it has sat ever since.

    After all these years, I decided to take it in and give it a Proper once-over.
    While removing the Chasis, I noticed that one of the Power Tubes wasn't all the way in.
    (Homer Simpson) DOH!!!

    Plugged it in, it works great.

    Funky as hell, the Vibrato is an Analog Pitch-Shift. A very Cool Chorus.
    12" Utah Speaker, I'm guessing it makes 15-20 watts.
    Very clean, it wasn't designed to break up.
    It does take pedals very well.

    Peace-out
     
  2. Fretting out

    Fretting out Poster Extraordinaire

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    Exactly! Make sure you KNOW what is in it

    I’ve heard of unscrupulous techs handing the customer a bag full of old caps/parts and billing for their replacement when they only changed a couple
     
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  3. rz350

    rz350 Friend of Leo's Ad Free Member

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    I work on my own amps, and take lots of pics.... :)
     
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  4. Torren61

    Torren61 Poster Extraordinaire Gold Supporter

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    I send them to Skip Simmons. No drama, good work, quick turnover and a fair price. No parts replaced that aren’t bad and I get my old parts back with the return of the amp. No need to send more than the chassis.
     
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  5. Tonetele

    Tonetele Poster Extraordinaire

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    Thanks . I have a Princeton Blackface RI and I'll be taking the schematics and circuit diagram with the guy here who works on most amps OR my best mate is a former aeronautics technician and he talks through everything as he does it.

    Good tip String Tree- I've been fooled before on a Fender twin. All new tubes and it didn't sound as good after that expensive service- never got the tubes back either.
     
    String Tree likes this.
  6. Colo Springs E

    Colo Springs E Doctor of Teleocity Ad Free Member

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    Yeah I could never go through all that trouble. I don't even know what I'd be looking for. Good thing is, there's a local amp guy in town who--by reputation--is very trustworthy.
     
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  7. String Tree

    String Tree Doctor of Teleocity Ad Free Member

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    I do as much work as I can.
    But, sometimes the guy with an Oscillascope has a better point of view than I do.
     
  8. String Tree

    String Tree Doctor of Teleocity Ad Free Member

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    I have been to a few of those guys myself!
     
  9. String Tree

    String Tree Doctor of Teleocity Ad Free Member

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    The world needs more people that are Trustworthy!

    As far as looking for things goes, I look for the obvious: does anything look or, Smell like it took too much heat?
    Is anything Loose?
    Are there signs of Physical Damage?

    The trouble I have been through with this process led me to a guy I trust!
     
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  10. String Tree

    String Tree Doctor of Teleocity Ad Free Member

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    Those tube you don't get back go in other people's Amps.

    What I learned the hard way is this: Tubes only work when ALL of the Resistors and, Capacitors and such are fine-Tuned to work with That Tube.

    cant be too careful.
    -ST
     
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  11. String Tree

    String Tree Doctor of Teleocity Ad Free Member

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    I am glad you have a Tech that CARES!

    Those guys are hard to find.
     
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  12. kingofdogs1950

    kingofdogs1950 Tele-Afflicted

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    Good advice.
    Back when I worked in bike shops I insisted on writing all service work at which time I would thoroughly document any issues, work needed and work being performed.
    It was VERY common for people to claim the shop had messed something up and we should fix it for free.
    Taking notes became a defense against people trolling for free work.
    About that time digital cameras became available and service writers would take pictures to document a bike's condition.
    It was an eye opener that so many people are dishonest.
    As a service writer it is very easy to pad a bill, but it is just something that I would never do.

    M
     
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  13. rz350

    rz350 Friend of Leo's Ad Free Member

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    I have an oscilloscope, been working on electronics for about 40 years...

    Not proud, just bored... ;)
     
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