1. zach5150

    zach5150 Guest

    Hi,
    I was wondering if anybody out there is familiar w/ the circuitry of a Koch Twintone, or has a schematic? Mine's acting funny and I want to get it fixed up. Basically, it's got a wierd distiortion sound, but it's not the tubes or the bias....I think it might have something to do w/ the speaker out jack....I tried to replace all the crappy, broken, plastic jacks w/ switchcraft, and ran into other problems....so, I went to put it all back together as original so I could figure out what might be causing my problem ( I dont even remember now what problem I ran into, this was a while back!), but when I put the plastic jacks back in, I think I might have put a regular (hot/ground) jack in place of where there should be a hot/ground/switch type jack. This amp has a built in power soak, so I'm not sure exactly how the speaker out circuit is laid out, and how the powersoak is connected- but anyway....what I'd like to do is, go back to the switchcraft jacks, but I need the schematics to make sure 1) I use the right style jack this time, and 2) make sure I hook it up right this time!
    Thanks
    Zach
     
  2. Roe

    Roe Member

    Messages:
    6,825
    Joined:
    Jul 12, 2005
    Location:
    tromsoe, norway
    ask rolf koch
     
  3. zach5150

    zach5150 Guest

    How do I get in touch w/ him? Is he a member of TGP? I sent an email to Koch a while back (just the main address on the website).....didnt hear anything back.
    Thanks for the reply...
     
  4. Droffie

    Droffie Member

    Messages:
    12
    Joined:
    Nov 21, 2003
    Location:
    The Netherlands
    Hi
    Just sent a reminder to him.
    It's Dolf Koch by the way.
     
  5. zach5150

    zach5150 Guest

    Does anybody have his email address? I prefer using that instead of the "info AT koch....." address......
    thanks
    zach
     
  6. Droffie

    Droffie Member

    Messages:
    12
    Joined:
    Nov 21, 2003
    Location:
    The Netherlands
    Sorry, can't help you there.

    You might want to spend a phone call on it.
     
  7. FrogRick12

    FrogRick12 Member

    Messages:
    61
    Joined:
    Aug 4, 2005
    Location:
    Brampton, ON, Canada
    Hi Zach,

    The North American distributor for Koch Amplification is Audionova Inc. in Dorval, Quebec, Canada.

    You can get in touch with them at:

    sales@audionova.ca

    or

    1 (514) 631-5787

    The president of Audionova is Mike van Stiphout - he will look after you!

    Let me know if I can help.

    Dave
     
  8. zach5150

    zach5150 Guest

    Cool! Thanks for the info...i'll give 'em a call tomorrow. I emailed Dolf Koch and friends today....hopefully, i'll get it sorted out.

    Thanks for all the replies everyone!
     
  9. Roe

    Roe Member

    Messages:
    6,825
    Joined:
    Jul 12, 2005
    Location:
    tromsoe, norway
    my experience is that koch answers about half of the mails
     
  10. teddys

    teddys Member

    Messages:
    775
    Joined:
    Jan 4, 2003
    Location:
    Lawn Giland, New Yawk
    I too had excellent results with Audio Nova when my Pedaltone had some issues.
     
  11. jaymeister

    jaymeister Supporting Member

    Messages:
    1,796
    Joined:
    Nov 3, 2004
    Location:
    Western Canada
    I have sent emails to them at info@koch-amps.com , and heard back next day. They are great. They are not likely to respond to a request for a schematic, but should at least direct you to the local authorized distributor or repair center.
     

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