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Holden 200 valve amp

Discussion in 'Amps and Cabs [BG]' started by will o the wasp, Jun 18, 2019.

  1. Jun 18, 2019 #1
    will o the wasp

    will o the wasp

    Jun 18, 2019
    Would it be safe to put KT120s (replacing the KT88s) in a Holden 200 amp?
     
  2. Jun 18, 2019 #2
    Giffro

    Giffro

    Apr 29, 2017
    South Australia
    I know that is an old Aussie or Kiwi amp and there are some good experts around TB here who will answer your query. A specialist amp designer and builder called @agedhorse may be able to help you here.
    If you have no luck try the OzBassForum. Click the link below. They may know more about this amp.
    - Index page
     
    Pulverizor likes this.
  3. Jun 18, 2019 #3
    foal30

    foal30

    Dec 3, 2007
    New Zealand
    I bumped up the Holden Club thread. I couldn't remember how to link threads sorry.
     
  4. Jun 18, 2019 #4
    bassboysam

    bassboysam

    Apr 26, 2001
    Ottawa, Ontario
    the first question is, why?
     
    BassmanPaul likes this.
  5. Jun 18, 2019 #5
    Mr. Foxen

    Mr. Foxen Commercial User

    Jul 24, 2009
    Bristol, UK
    Amp tinkerer at Ampstack
    Wrong valves is less safe than right valves.
     
    BassmanPaul likes this.
  6. Jun 18, 2019 #6
    Giffro

    Giffro

    Apr 29, 2017
    South Australia
    Last edited: Jun 18, 2019
    foal30 likes this.
  7. Jun 18, 2019 #7
    BassmanPaul

    BassmanPaul Inactive

    Aug 25, 2007
    Scarborough Ontario Canada
    I too would like to know why the OP would want to do this. What is he hoping to gain over what the KT88’s deliver?

    BTW @will o the wasp welcome to TalkBass. :)
     
  8. Jun 22, 2019 #8
    will o the wasp

    will o the wasp

    Jun 18, 2019
    Apparently the KT120 has a warmer bass sound and more headroom.It sounded a good idea for my 5 string.But decided against it after talking to a few technically minded guys.I might try,experiment. with the tone controls.
     
  9. Jun 22, 2019 #9
    BassmanPaul

    BassmanPaul Inactive

    Aug 25, 2007
    Scarborough Ontario Canada
    It also has a higher heater current draw stressing the power transformer.
     
    agedhorse likes this.
  10. Jun 22, 2019 #10
    BogeyBass

    BogeyBass Inactive

    Sep 14, 2010
    The bottles are bigger and taller.
    Don't know if spacing allows it.

    But if they did. Need bias.
    I don't see point but they are massive bottles.

    Could do more. But would perform very much the same in the amp. Same transformers same current same voltage