Champion 600?

Discussion in 'Amp Central Station' started by wildbill59, Aug 28, 2020.

  1. wildbill59

    wildbill59 Tele-Meister

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    So I've been looking for a little tube amp to putz around with over the winter - I've been looking at those Mojotone tweed Champ kits, but that might be a little too advanced to start with. Although I can still use a soldering iron, my eyes are getting a little bad, my fingers are getting sore, and my attention span is getting short. I was looking for either an Epiphone Valve Jr or a Champion 600. I think I found a good deal on the little Champion - any thoughts? Does it resemble the 5F1 circuit at all? Seems like there's some interesting mod kits out there, I thought that would be an easy way to get my amp chops back up to speed a little.
     
  2. tubelectron

    tubelectron Tele-Afflicted

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    @wildbill59 :

    The champion 600 schematic is available here :

    https://www.thetubestore.com/lib/thetubestore/schematics/Fender/Fender-Champion-600-Schematic.pdf

    The main difference is the pre-set tone corrector between the 2 12AX7 triodes that doesn't exist on a vintage 5F1 amp.

    I had its brother the Gretsch G5222 RI - exactly the same schematic as the Champion 600 RI. I rebuilt it :

    [​IMG]

    Here's my schematic :

    [​IMG]

    Here's the 5E1 schematic (like mine, it uses a choke, conversely to 5F1) :

    [​IMG]

    Here's the 5F1 :

    [​IMG]

    All these circuits would also fit in a Champion 600 RI since it shares the same chassis as the G5222 RI... Well... That said : you may not want to go so far ! :oops:

    But it's me, OK ? :D

    -tbln.
     
  3. Wildeman

    Wildeman Tele-Meister

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    Had one, good little amp. The grill cloth needs to be changed, it is way too thick. I got some burlap from hobby lobby for a few bux. I also cut out a tone stack resistor, R19 i think, its a common mod you should be able to find. Those two things made a big improvement.
    I have a Vibro Champ XD now and like it more.
     
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  4. eddiewagner

    eddiewagner Poster Extraordinaire

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    I had one. Sounded good but hummed like crazy.
     
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  5. radiocaster

    radiocaster Poster Extraordinaire

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    You're talking 3 different circuits:
    1. Original Champion 600 - 5C1 circuit basically
    2. 5F1 - the popular tweed Champ circuit
    3. New Champion 600 - basically a blackface Champ with fixed resistors for the tone controls.
     
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  6. tweedman2001

    tweedman2001 Tele-Afflicted

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    There are plenty of simple mods to do to these little guys. Try post #1072

    https://www.tdpri.com/threads/champ-600-owners-club.166210/page-54

    Mine has ended up as in post #1074. I love this amp with easy mods. Or you can totally rebuild it. There are so many options. Google is your friend. Just be safe working on any amplifier.
     
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  7. unixfish

    unixfish Doctor of Teleocity Silver Supporter

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    If you connect a Champion 600 to a 1x12 or 2x12 cabinet, it sounds awesome!

    Just sayin'.
     
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  8. tubelectron

    tubelectron Tele-Afflicted

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    Right : that's why mine has a choke and bigger caps... :D

    -tbln.
     
    Last edited: Aug 28, 2020
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  9. beachbreak

    beachbreak Tele-Meister

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    Nice little amp but the overdriven sound with the stock speaker sounded like buzzing bees, horrible and it broke up very early.

    I put a Weber signature speaker in it and had a lot of headroom, so much that I used an OD pedal to keep it at den volume levels. Nice upgrade, good little amp.
     
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  10. darkwaters

    darkwaters Friend of Leo's

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    Love my G5222. Replaced the grill cloth with some cool burlap, clipped the 2 resistors to remove the tone stack and the negative feedback and replaced the 12ax7 with a 12ay7. Great sounding little amp!
     
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  11. Bellacaster

    Bellacaster Tele-Afflicted

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    I have a G5222 that I like a lot. I bought a kit from a guy that updated the circuit to a 5E1 or 5F1 circuit, changed the grill cloth, upgraded the speaker and put in some vintage tubes. The kit also reoriented the output transformer to decrease the inherent noise of the amp. Unixfish is right. Hooking it up to a larger speaker or cab is awesome. I have a 2x12 cabinet with some low power WGS speakers and it sounds glorious through it.
     
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